199945509740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1823}}^1\times {\mathrm{77239}}^1$

素因数の和:79142

約数の個数: 48

約数和(自身を含む): 426038538240

約数和(自身を除く): 226093028500

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1823, 3646, 7292, 9115, 18230, 36460, 77239, 129433, 154478, 258866, 308956, 386195, 517732, 647165, 772390, 1294330, 1544780, 2588660, 5483969, 10967938, 21935876, 27419845, 54839690, 109679380, 140806697, 281613394, 563226788, 704033485, 1408066970, 2816133940, 9997275487, 19994550974, 39989101948, 49986377435, 99972754870, 199945509740]

約数ペア:

[(1, 199945509740), (2, 99972754870), (4, 49986377435), (5, 39989101948), (10, 19994550974), (20, 9997275487), (71, 2816133940), (142, 1408066970), (284, 704033485), (355, 563226788), (710, 281613394), (1420, 140806697), (1823, 109679380), (3646, 54839690), (7292, 27419845), (9115, 21935876), (18230, 10967938), (36460, 5483969), (77239, 2588660), (129433, 1544780), (154478, 1294330), (258866, 772390), (308956, 647165), (386195, 517732)]