620170120

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{64333}}^1$

素因数の和:64585

約数の個数: 32

約数和(自身を含む): 1401194520

約数和(自身を除く): 781024400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 9640, 64333, 128666, 257332, 321665, 514664, 643330, 1286660, 2573320, 15504253, 31008506, 62017012, 77521265, 124034024, 155042530, 310085060, 620170120]

約数ペア:

[(1, 620170120), (2, 310085060), (4, 155042530), (5, 124034024), (8, 77521265), (10, 62017012), (20, 31008506), (40, 15504253), (241, 2573320), (482, 1286660), (964, 643330), (1205, 514664), (1928, 321665), (2410, 257332), (4820, 128666), (9640, 64333)]