199430960

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{40867}}^1$

素因数の和:40941

約数の個数: 40

約数和(自身を含む): 471289776

約数和(自身を除く): 271858816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 40867, 81734, 163468, 204335, 326936, 408670, 653872, 817340, 1634680, 2492887, 3269360, 4985774, 9971548, 12464435, 19943096, 24928870, 39886192, 49857740, 99715480, 199430960]

約数ペア:

[(1, 199430960), (2, 99715480), (4, 49857740), (5, 39886192), (8, 24928870), (10, 19943096), (16, 12464435), (20, 9971548), (40, 4985774), (61, 3269360), (80, 2492887), (122, 1634680), (244, 817340), (305, 653872), (488, 408670), (610, 326936), (976, 204335), (1220, 163468), (2440, 81734), (4880, 40867)]