19795510

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:661

約数の個数: 48

約数和(自身を含む): 42107040

約数和(自身を除く): 22311530

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 71, 98, 142, 245, 355, 490, 497, 569, 710, 994, 1138, 2485, 2845, 3479, 3983, 4970, 5690, 6958, 7966, 17395, 19915, 27881, 34790, 39830, 40399, 55762, 80798, 139405, 201995, 278810, 282793, 403990, 565586, 1413965, 1979551, 2827930, 3959102, 9897755, 19795510]

約数ペア:

[(1, 19795510), (2, 9897755), (5, 3959102), (7, 2827930), (10, 1979551), (14, 1413965), (35, 565586), (49, 403990), (70, 282793), (71, 278810), (98, 201995), (142, 139405), (245, 80798), (355, 55762), (490, 40399), (497, 39830), (569, 34790), (710, 27881), (994, 19915), (1138, 17395), (2485, 7966), (2845, 6958), (3479, 5690), (3983, 4970)]