15637960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:131

約数の個数: 128

約数和(自身を含む): 42184800

約数和(自身を除く): 26546840

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 29, 34, 40, 52, 58, 61, 65, 68, 85, 104, 116, 122, 130, 136, 145, 170, 221, 232, 244, 260, 290, 305, 340, 377, 442, 488, 493, 520, 580, 610, 680, 754, 793, 884, 986, 1037, 1105, 1160, 1220, 1508, 1586, 1768, 1769, 1885, 1972, 2074, 2210, 2440, 2465, 3016, 3172, 3538, 3770, 3944, 3965, 4148, 4420, 4930, 5185, 6344, 6409, 7076, 7540, 7930, 8296, 8840, 8845, 9860, 10370, 12818, 13481, 14152, 15080, 15860, 17690, 19720, 20740, 22997, 25636, 26962, 30073, 31720, 32045, 35380, 41480, 45994, 51272, 53924, 60146, 64090, 67405, 70760, 91988, 107848, 114985, 120292, 128180, 134810, 150365, 183976, 229970, 240584, 256360, 269620, 300730, 390949, 459940, 539240, 601460, 781898, 919880, 1202920, 1563796, 1954745, 3127592, 3909490, 7818980, 15637960]

約数ペア:

[(1, 15637960), (2, 7818980), (4, 3909490), (5, 3127592), (8, 1954745), (10, 1563796), (13, 1202920), (17, 919880), (20, 781898), (26, 601460), (29, 539240), (34, 459940), (40, 390949), (52, 300730), (58, 269620), (61, 256360), (65, 240584), (68, 229970), (85, 183976), (104, 150365), (116, 134810), (122, 128180), (130, 120292), (136, 114985), (145, 107848), (170, 91988), (221, 70760), (232, 67405), (244, 64090), (260, 60146), (290, 53924), (305, 51272), (340, 45994), (377, 41480), (442, 35380), (488, 32045), (493, 31720), (520, 30073), (580, 26962), (610, 25636), (680, 22997), (754, 20740), (793, 19720), (884, 17690), (986, 15860), (1037, 15080), (1105, 14152), (1160, 13481), (1220, 12818), (1508, 10370), (1586, 9860), (1768, 8845), (1769, 8840), (1885, 8296), (1972, 7930), (2074, 7540), (2210, 7076), (2440, 6409), (2465, 6344), (3016, 5185), (3172, 4930), (3538, 4420), (3770, 4148), (3944, 3965)]