31699980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:101

約数の個数: 288

約数和(自身を含む): 117411840

約数和(自身を除く): 85711860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 23, 26, 30, 31, 36, 38, 39, 45, 46, 52, 57, 60, 62, 65, 69, 76, 78, 90, 92, 93, 95, 114, 115, 117, 124, 130, 138, 155, 156, 171, 180, 186, 190, 195, 207, 228, 230, 234, 247, 260, 276, 279, 285, 299, 310, 342, 345, 372, 380, 390, 403, 414, 437, 460, 465, 468, 494, 558, 570, 585, 589, 598, 620, 684, 690, 713, 741, 780, 806, 828, 855, 874, 897, 930, 988, 1035, 1116, 1140, 1170, 1178, 1196, 1209, 1235, 1311, 1380, 1395, 1426, 1482, 1495, 1612, 1710, 1748, 1767, 1794, 1860, 2015, 2070, 2139, 2185, 2223, 2340, 2356, 2418, 2470, 2622, 2691, 2790, 2852, 2945, 2964, 2990, 3420, 3534, 3565, 3588, 3627, 3705, 3933, 4030, 4140, 4278, 4370, 4446, 4485, 4836, 4940, 5244, 5301, 5382, 5580, 5681, 5890, 5980, 6045, 6417, 6555, 7068, 7130, 7254, 7410, 7657, 7866, 8060, 8556, 8740, 8835, 8892, 8970, 9269, 10602, 10695, 10764, 11115, 11362, 11780, 12090, 12834, 13110, 13455, 13547, 14260, 14508, 14820, 15314, 15732, 17043, 17670, 17940, 18135, 18538, 19665, 21204, 21390, 22230, 22724, 22971, 24180, 25668, 26220, 26505, 26910, 27094, 27807, 28405, 30628, 32085, 34086, 35340, 36270, 37076, 38285, 39330, 40641, 42780, 44460, 45942, 46345, 51129, 53010, 53820, 54188, 55614, 56810, 64170, 67735, 68172, 68913, 72540, 76570, 78660, 81282, 83421, 85215, 91884, 92690, 102258, 106020, 111228, 113620, 114855, 121923, 128340, 135470, 137826, 139035, 153140, 162564, 166842, 170430, 176111, 185380, 203205, 204516, 229710, 243846, 255645, 270940, 275652, 278070, 333684, 340860, 344565, 352222, 406410, 417105, 459420, 487692, 511290, 528333, 556140, 609615, 689130, 704444, 812820, 834210, 880555, 1022580, 1056666, 1219230, 1378260, 1584999, 1668420, 1761110, 2113332, 2438460, 2641665, 3169998, 3522220, 5283330, 6339996, 7924995, 10566660, 15849990, 31699980]

約数ペア:

[(1, 31699980), (2, 15849990), (3, 10566660), (4, 7924995), (5, 6339996), (6, 5283330), (9, 3522220), (10, 3169998), (12, 2641665), (13, 2438460), (15, 2113332), (18, 1761110), (19, 1668420), (20, 1584999), (23, 1378260), (26, 1219230), (30, 1056666), (31, 1022580), (36, 880555), (38, 834210), (39, 812820), (45, 704444), (46, 689130), (52, 609615), (57, 556140), (60, 528333), (62, 511290), (65, 487692), (69, 459420), (76, 417105), (78, 406410), (90, 352222), (92, 344565), (93, 340860), (95, 333684), (114, 278070), (115, 275652), (117, 270940), (124, 255645), (130, 243846), (138, 229710), (155, 204516), (156, 203205), (171, 185380), (180, 176111), (186, 170430), (190, 166842), (195, 162564), (207, 153140), (228, 139035), (230, 137826), (234, 135470), (247, 128340), (260, 121923), (276, 114855), (279, 113620), (285, 111228), (299, 106020), (310, 102258), (342, 92690), (345, 91884), (372, 85215), (380, 83421), (390, 81282), (403, 78660), (414, 76570), (437, 72540), (460, 68913), (465, 68172), (468, 67735), (494, 64170), (558, 56810), (570, 55614), (585, 54188), (589, 53820), (598, 53010), (620, 51129), (684, 46345), (690, 45942), (713, 44460), (741, 42780), (780, 40641), (806, 39330), (828, 38285), (855, 37076), (874, 36270), (897, 35340), (930, 34086), (988, 32085), (1035, 30628), (1116, 28405), (1140, 27807), (1170, 27094), (1178, 26910), (1196, 26505), (1209, 26220), (1235, 25668), (1311, 24180), (1380, 22971), (1395, 22724), (1426, 22230), (1482, 21390), (1495, 21204), (1612, 19665), (1710, 18538), (1748, 18135), (1767, 17940), (1794, 17670), (1860, 17043), (2015, 15732), (2070, 15314), (2139, 14820), (2185, 14508), (2223, 14260), (2340, 13547), (2356, 13455), (2418, 13110), (2470, 12834), (2622, 12090), (2691, 11780), (2790, 11362), (2852, 11115), (2945, 10764), (2964, 10695), (2990, 10602), (3420, 9269), (3534, 8970), (3565, 8892), (3588, 8835), (3627, 8740), (3705, 8556), (3933, 8060), (4030, 7866), (4140, 7657), (4278, 7410), (4370, 7254), (4446, 7130), (4485, 7068), (4836, 6555), (4940, 6417), (5244, 6045), (5301, 5980), (5382, 5890), (5580, 5681)]