261839640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1193}}^1$

素因数の和:1297

約数の個数: 128

約数和(自身を含む): 825292800

約数和(自身を除く): 563453160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 59, 60, 62, 93, 118, 120, 124, 155, 177, 186, 236, 248, 295, 310, 354, 372, 465, 472, 590, 620, 708, 744, 885, 930, 1180, 1193, 1240, 1416, 1770, 1829, 1860, 2360, 2386, 3540, 3579, 3658, 3720, 4772, 5487, 5965, 7080, 7158, 7316, 9145, 9544, 10974, 11930, 14316, 14632, 17895, 18290, 21948, 23860, 27435, 28632, 35790, 36580, 36983, 43896, 47720, 54870, 70387, 71580, 73160, 73966, 109740, 110949, 140774, 143160, 147932, 184915, 211161, 219480, 221898, 281548, 295864, 351935, 369830, 422322, 443796, 554745, 563096, 703870, 739660, 844644, 887592, 1055805, 1109490, 1407740, 1479320, 1689288, 2111610, 2181997, 2218980, 2815480, 4223220, 4363994, 4437960, 6545991, 8446440, 8727988, 10909985, 13091982, 17455976, 21819970, 26183964, 32729955, 43639940, 52367928, 65459910, 87279880, 130919820, 261839640]

約数ペア:

[(1, 261839640), (2, 130919820), (3, 87279880), (4, 65459910), (5, 52367928), (6, 43639940), (8, 32729955), (10, 26183964), (12, 21819970), (15, 17455976), (20, 13091982), (24, 10909985), (30, 8727988), (31, 8446440), (40, 6545991), (59, 4437960), (60, 4363994), (62, 4223220), (93, 2815480), (118, 2218980), (120, 2181997), (124, 2111610), (155, 1689288), (177, 1479320), (186, 1407740), (236, 1109490), (248, 1055805), (295, 887592), (310, 844644), (354, 739660), (372, 703870), (465, 563096), (472, 554745), (590, 443796), (620, 422322), (708, 369830), (744, 351935), (885, 295864), (930, 281548), (1180, 221898), (1193, 219480), (1240, 211161), (1416, 184915), (1770, 147932), (1829, 143160), (1860, 140774), (2360, 110949), (2386, 109740), (3540, 73966), (3579, 73160), (3658, 71580), (3720, 70387), (4772, 54870), (5487, 47720), (5965, 43896), (7080, 36983), (7158, 36580), (7316, 35790), (9145, 28632), (9544, 27435), (10974, 23860), (11930, 21948), (14316, 18290), (14632, 17895)]