291259008125

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{2521}}^1$

素因数の和:2728

約数の個数: 80

約数和(自身を含む): 385742522880

約数和(自身を除く): 94483514755

約数列:

[1, 5, 25, 31, 67, 89, 125, 155, 335, 445, 625, 775, 1675, 2077, 2225, 2521, 2759, 3875, 5963, 8375, 10385, 11125, 12605, 13795, 19375, 29815, 41875, 51925, 55625, 63025, 68975, 78151, 149075, 168907, 184853, 224369, 259625, 315125, 344875, 390755, 745375, 844535, 924265, 1121845, 1298125, 1575625, 1724375, 1953775, 3726875, 4222675, 4621325, 5236117, 5609225, 6955439, 9768875, 15032723, 21113375, 23106625, 26180585, 28046125, 34777195, 48844375, 75163615, 105566875, 115533125, 130902925, 140230625, 173885975, 375818075, 466014413, 654514625, 869429875, 1879090375, 2330072065, 3272573125, 4347149375, 9395451875, 11650360325, 58251801625, 291259008125]

約数ペア:

[(1, 291259008125), (5, 58251801625), (25, 11650360325), (31, 9395451875), (67, 4347149375), (89, 3272573125), (125, 2330072065), (155, 1879090375), (335, 869429875), (445, 654514625), (625, 466014413), (775, 375818075), (1675, 173885975), (2077, 140230625), (2225, 130902925), (2521, 115533125), (2759, 105566875), (3875, 75163615), (5963, 48844375), (8375, 34777195), (10385, 28046125), (11125, 26180585), (12605, 23106625), (13795, 21113375), (19375, 15032723), (29815, 9768875), (41875, 6955439), (51925, 5609225), (55625, 5236117), (63025, 4621325), (68975, 4222675), (78151, 3726875), (149075, 1953775), (168907, 1724375), (184853, 1575625), (224369, 1298125), (259625, 1121845), (315125, 924265), (344875, 844535), (390755, 745375)]