155840360

素因数分解:

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

素因数の和:136

約数の個数: 128

約数和(自身を含む): 407786400

約数和(自身を除く): 251946040

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 61, 65, 68, 85, 104, 122, 130, 136, 170, 221, 244, 260, 289, 305, 340, 442, 488, 520, 578, 610, 680, 793, 884, 1037, 1105, 1156, 1220, 1445, 1586, 1768, 2074, 2210, 2312, 2440, 2890, 3172, 3757, 3965, 4148, 4420, 4913, 5185, 5780, 6344, 7514, 7930, 8296, 8840, 9826, 10370, 11560, 13481, 15028, 15860, 17629, 18785, 19652, 20740, 24565, 26962, 30056, 31720, 35258, 37570, 39304, 41480, 49130, 53924, 63869, 67405, 70516, 75140, 88145, 98260, 107848, 127738, 134810, 141032, 150280, 176290, 196520, 229177, 255476, 269620, 299693, 319345, 352580, 458354, 510952, 539240, 599386, 638690, 705160, 916708, 1145885, 1198772, 1277380, 1498465, 1833416, 2291770, 2397544, 2554760, 2996930, 3896009, 4583540, 5993860, 7792018, 9167080, 11987720, 15584036, 19480045, 31168072, 38960090, 77920180, 155840360]

約数ペア:

[(1, 155840360), (2, 77920180), (4, 38960090), (5, 31168072), (8, 19480045), (10, 15584036), (13, 11987720), (17, 9167080), (20, 7792018), (26, 5993860), (34, 4583540), (40, 3896009), (52, 2996930), (61, 2554760), (65, 2397544), (68, 2291770), (85, 1833416), (104, 1498465), (122, 1277380), (130, 1198772), (136, 1145885), (170, 916708), (221, 705160), (244, 638690), (260, 599386), (289, 539240), (305, 510952), (340, 458354), (442, 352580), (488, 319345), (520, 299693), (578, 269620), (610, 255476), (680, 229177), (793, 196520), (884, 176290), (1037, 150280), (1105, 141032), (1156, 134810), (1220, 127738), (1445, 107848), (1586, 98260), (1768, 88145), (2074, 75140), (2210, 70516), (2312, 67405), (2440, 63869), (2890, 53924), (3172, 49130), (3757, 41480), (3965, 39304), (4148, 37570), (4420, 35258), (4913, 31720), (5185, 30056), (5780, 26962), (6344, 24565), (7514, 20740), (7930, 19652), (8296, 18785), (8840, 17629), (9826, 15860), (10370, 15028), (11560, 13481)]