28789560

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 256

約数和(自身を含む): 107136000

約数和(自身を除く): 78346440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 23, 24, 27, 30, 36, 38, 40, 45, 46, 54, 57, 60, 61, 69, 72, 76, 90, 92, 95, 108, 114, 115, 120, 122, 135, 138, 152, 171, 180, 183, 184, 190, 207, 216, 228, 230, 244, 270, 276, 285, 305, 342, 345, 360, 366, 380, 414, 437, 456, 460, 488, 513, 540, 549, 552, 570, 610, 621, 684, 690, 732, 760, 828, 855, 874, 915, 920, 1026, 1035, 1080, 1098, 1140, 1159, 1220, 1242, 1311, 1368, 1380, 1403, 1464, 1647, 1656, 1710, 1748, 1830, 2052, 2070, 2185, 2196, 2280, 2318, 2440, 2484, 2565, 2622, 2745, 2760, 2806, 3105, 3294, 3420, 3477, 3496, 3660, 3933, 4104, 4140, 4209, 4370, 4392, 4636, 4968, 5130, 5244, 5490, 5612, 5795, 6210, 6555, 6588, 6840, 6954, 7015, 7320, 7866, 8235, 8280, 8418, 8740, 9272, 10260, 10431, 10488, 10980, 11224, 11590, 11799, 12420, 12627, 13110, 13176, 13908, 14030, 15732, 16470, 16836, 17385, 17480, 19665, 20520, 20862, 21045, 21960, 23180, 23598, 24840, 25254, 26220, 26657, 27816, 28060, 31293, 31464, 32940, 33672, 34770, 37881, 39330, 41724, 42090, 46360, 47196, 50508, 52155, 52440, 53314, 56120, 58995, 62586, 63135, 65880, 69540, 75762, 78660, 79971, 83448, 84180, 94392, 101016, 104310, 106628, 117990, 125172, 126270, 133285, 139080, 151524, 156465, 157320, 159942, 168360, 189405, 208620, 213256, 235980, 239913, 250344, 252540, 266570, 303048, 312930, 319884, 378810, 399855, 417240, 471960, 479826, 505080, 533140, 625860, 639768, 719739, 757620, 799710, 959652, 1066280, 1199565, 1251720, 1439478, 1515240, 1599420, 1919304, 2399130, 2878956, 3198840, 3598695, 4798260, 5757912, 7197390, 9596520, 14394780, 28789560]

約数ペア:

[(1, 28789560), (2, 14394780), (3, 9596520), (4, 7197390), (5, 5757912), (6, 4798260), (8, 3598695), (9, 3198840), (10, 2878956), (12, 2399130), (15, 1919304), (18, 1599420), (19, 1515240), (20, 1439478), (23, 1251720), (24, 1199565), (27, 1066280), (30, 959652), (36, 799710), (38, 757620), (40, 719739), (45, 639768), (46, 625860), (54, 533140), (57, 505080), (60, 479826), (61, 471960), (69, 417240), (72, 399855), (76, 378810), (90, 319884), (92, 312930), (95, 303048), (108, 266570), (114, 252540), (115, 250344), (120, 239913), (122, 235980), (135, 213256), (138, 208620), (152, 189405), (171, 168360), (180, 159942), (183, 157320), (184, 156465), (190, 151524), (207, 139080), (216, 133285), (228, 126270), (230, 125172), (244, 117990), (270, 106628), (276, 104310), (285, 101016), (305, 94392), (342, 84180), (345, 83448), (360, 79971), (366, 78660), (380, 75762), (414, 69540), (437, 65880), (456, 63135), (460, 62586), (488, 58995), (513, 56120), (540, 53314), (549, 52440), (552, 52155), (570, 50508), (610, 47196), (621, 46360), (684, 42090), (690, 41724), (732, 39330), (760, 37881), (828, 34770), (855, 33672), (874, 32940), (915, 31464), (920, 31293), (1026, 28060), (1035, 27816), (1080, 26657), (1098, 26220), (1140, 25254), (1159, 24840), (1220, 23598), (1242, 23180), (1311, 21960), (1368, 21045), (1380, 20862), (1403, 20520), (1464, 19665), (1647, 17480), (1656, 17385), (1710, 16836), (1748, 16470), (1830, 15732), (2052, 14030), (2070, 13908), (2185, 13176), (2196, 13110), (2280, 12627), (2318, 12420), (2440, 11799), (2484, 11590), (2565, 11224), (2622, 10980), (2745, 10488), (2760, 10431), (2806, 10260), (3105, 9272), (3294, 8740), (3420, 8418), (3477, 8280), (3496, 8235), (3660, 7866), (3933, 7320), (4104, 7015), (4140, 6954), (4209, 6840), (4370, 6588), (4392, 6555), (4636, 6210), (4968, 5795), (5130, 5612), (5244, 5490)]