71396840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1009}}^1$

素因数の和:1110

約数の個数: 64

約数和(自身を含む): 169074000

約数和(自身を除く): 97677160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 61, 116, 122, 145, 232, 244, 290, 305, 488, 580, 610, 1009, 1160, 1220, 1769, 2018, 2440, 3538, 4036, 5045, 7076, 8072, 8845, 10090, 14152, 17690, 20180, 29261, 35380, 40360, 58522, 61549, 70760, 117044, 123098, 146305, 234088, 246196, 292610, 307745, 492392, 585220, 615490, 1170440, 1230980, 1784921, 2461960, 3569842, 7139684, 8924605, 14279368, 17849210, 35698420, 71396840]

約数ペア:

[(1, 71396840), (2, 35698420), (4, 17849210), (5, 14279368), (8, 8924605), (10, 7139684), (20, 3569842), (29, 2461960), (40, 1784921), (58, 1230980), (61, 1170440), (116, 615490), (122, 585220), (145, 492392), (232, 307745), (244, 292610), (290, 246196), (305, 234088), (488, 146305), (580, 123098), (610, 117044), (1009, 70760), (1160, 61549), (1220, 58522), (1769, 40360), (2018, 35380), (2440, 29261), (3538, 20180), (4036, 17690), (5045, 14152), (7076, 10090), (8072, 8845)]