1271521420

素因数分解:

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

素因数の和:133

約数の個数: 192

約数和(自身を含む): 3269468160

約数和(自身を除く): 1997946740

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 23, 26, 31, 38, 46, 52, 62, 65, 76, 92, 95, 115, 124, 130, 155, 190, 230, 247, 260, 299, 310, 361, 380, 403, 437, 460, 494, 589, 598, 620, 713, 722, 806, 874, 988, 1178, 1196, 1235, 1426, 1444, 1495, 1612, 1748, 1805, 2015, 2185, 2356, 2470, 2852, 2945, 2990, 3565, 3610, 4030, 4370, 4693, 4940, 5681, 5890, 5980, 6859, 7130, 7220, 7657, 8060, 8303, 8740, 9269, 9386, 11191, 11362, 11780, 13547, 13718, 14260, 15314, 16606, 18538, 18772, 22382, 22724, 23465, 27094, 27436, 28405, 30628, 33212, 34295, 37076, 38285, 41515, 44764, 46345, 46930, 54188, 55955, 56810, 67735, 68590, 76570, 83030, 89167, 92690, 93860, 107939, 111910, 113620, 135470, 137180, 145483, 153140, 157757, 166060, 176111, 178334, 185380, 212629, 215878, 223820, 257393, 270940, 290966, 315514, 352222, 356668, 425258, 431756, 445835, 514786, 539695, 581932, 631028, 704444, 727415, 788785, 850516, 880555, 891670, 1029572, 1063145, 1079390, 1286965, 1454830, 1577570, 1761110, 1783340, 2050841, 2126290, 2158780, 2573930, 2764177, 2909660, 3155140, 3346109, 3522220, 4101682, 4252580, 4890467, 5147860, 5528354, 6692218, 8203364, 9780934, 10254205, 11056708, 13384436, 13820885, 16730545, 19561868, 20508410, 24452335, 27641770, 33461090, 41016820, 48904670, 55283540, 63576071, 66922180, 97809340, 127152142, 254304284, 317880355, 635760710, 1271521420]

約数ペア:

[(1, 1271521420), (2, 635760710), (4, 317880355), (5, 254304284), (10, 127152142), (13, 97809340), (19, 66922180), (20, 63576071), (23, 55283540), (26, 48904670), (31, 41016820), (38, 33461090), (46, 27641770), (52, 24452335), (62, 20508410), (65, 19561868), (76, 16730545), (92, 13820885), (95, 13384436), (115, 11056708), (124, 10254205), (130, 9780934), (155, 8203364), (190, 6692218), (230, 5528354), (247, 5147860), (260, 4890467), (299, 4252580), (310, 4101682), (361, 3522220), (380, 3346109), (403, 3155140), (437, 2909660), (460, 2764177), (494, 2573930), (589, 2158780), (598, 2126290), (620, 2050841), (713, 1783340), (722, 1761110), (806, 1577570), (874, 1454830), (988, 1286965), (1178, 1079390), (1196, 1063145), (1235, 1029572), (1426, 891670), (1444, 880555), (1495, 850516), (1612, 788785), (1748, 727415), (1805, 704444), (2015, 631028), (2185, 581932), (2356, 539695), (2470, 514786), (2852, 445835), (2945, 431756), (2990, 425258), (3565, 356668), (3610, 352222), (4030, 315514), (4370, 290966), (4693, 270940), (4940, 257393), (5681, 223820), (5890, 215878), (5980, 212629), (6859, 185380), (7130, 178334), (7220, 176111), (7657, 166060), (8060, 157757), (8303, 153140), (8740, 145483), (9269, 137180), (9386, 135470), (11191, 113620), (11362, 111910), (11780, 107939), (13547, 93860), (13718, 92690), (14260, 89167), (15314, 83030), (16606, 76570), (18538, 68590), (18772, 67735), (22382, 56810), (22724, 55955), (23465, 54188), (27094, 46930), (27436, 46345), (28405, 44764), (30628, 41515), (33212, 38285), (34295, 37076)]