39688520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 92398320

約数和(自身を除く): 52709800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 97, 106, 193, 194, 212, 265, 386, 388, 424, 485, 530, 772, 776, 965, 970, 1060, 1544, 1930, 1940, 2120, 3860, 3880, 5141, 7720, 10229, 10282, 18721, 20458, 20564, 25705, 37442, 40916, 41128, 51145, 51410, 74884, 81832, 93605, 102290, 102820, 149768, 187210, 204580, 205640, 374420, 409160, 748840, 992213, 1984426, 3968852, 4961065, 7937704, 9922130, 19844260, 39688520]

約数ペア:

[(1, 39688520), (2, 19844260), (4, 9922130), (5, 7937704), (8, 4961065), (10, 3968852), (20, 1984426), (40, 992213), (53, 748840), (97, 409160), (106, 374420), (193, 205640), (194, 204580), (212, 187210), (265, 149768), (386, 102820), (388, 102290), (424, 93605), (485, 81832), (530, 74884), (772, 51410), (776, 51145), (965, 41128), (970, 40916), (1060, 37442), (1544, 25705), (1930, 20564), (1940, 20458), (2120, 18721), (3860, 10282), (3880, 10229), (5141, 7720)]