81276320

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29881}}^1$

素因数の和:29913

約数の個数: 48

約数和(自身を含む): 203317128

約数和(自身を除く): 122040808

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 29881, 59762, 119524, 149405, 239048, 298810, 478096, 507977, 597620, 956192, 1015954, 1195240, 2031908, 2390480, 2539885, 4063816, 4780960, 5079770, 8127632, 10159540, 16255264, 20319080, 40638160, 81276320]

約数ペア:

[(1, 81276320), (2, 40638160), (4, 20319080), (5, 16255264), (8, 10159540), (10, 8127632), (16, 5079770), (17, 4780960), (20, 4063816), (32, 2539885), (34, 2390480), (40, 2031908), (68, 1195240), (80, 1015954), (85, 956192), (136, 597620), (160, 507977), (170, 478096), (272, 298810), (340, 239048), (544, 149405), (680, 119524), (1360, 59762), (2720, 29881)]