19331260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{499}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 44100000

約数和(自身を除く): 24768740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 149, 260, 298, 499, 596, 745, 998, 1490, 1937, 1996, 2495, 2980, 3874, 4990, 6487, 7748, 9685, 9980, 12974, 19370, 25948, 32435, 38740, 64870, 74351, 129740, 148702, 297404, 371755, 743510, 966563, 1487020, 1933126, 3866252, 4832815, 9665630, 19331260]

約数ペア:

[(1, 19331260), (2, 9665630), (4, 4832815), (5, 3866252), (10, 1933126), (13, 1487020), (20, 966563), (26, 743510), (52, 371755), (65, 297404), (130, 148702), (149, 129740), (260, 74351), (298, 64870), (499, 38740), (596, 32435), (745, 25948), (998, 19370), (1490, 12974), (1937, 9980), (1996, 9685), (2495, 7748), (2980, 6487), (3874, 4990)]