20178261008

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{457}}^1\times {\mathrm{119983}}^1$

素因数の和:120471

約数の個数: 40

約数和(自身を含む): 40884787968

約数和(自身を除く): 20706526960

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 457, 914, 1828, 3656, 7312, 10511, 21022, 42044, 84088, 119983, 168176, 239966, 479932, 959864, 1919728, 2759609, 5519218, 11038436, 22076872, 44153744, 54832231, 109664462, 219328924, 438657848, 877315696, 1261141313, 2522282626, 5044565252, 10089130504, 20178261008]

約数ペア:

[(1, 20178261008), (2, 10089130504), (4, 5044565252), (8, 2522282626), (16, 1261141313), (23, 877315696), (46, 438657848), (92, 219328924), (184, 109664462), (368, 54832231), (457, 44153744), (914, 22076872), (1828, 11038436), (3656, 5519218), (7312, 2759609), (10511, 1919728), (21022, 959864), (42044, 479932), (84088, 239966), (119983, 168176)]