82649420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20357}}^1$

素因数の和:20402

約数の個数: 48

約数和(自身を含む): 205208640

約数和(自身を除く): 122559220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 20357, 40714, 81428, 101785, 142499, 203570, 284998, 407140, 569996, 590353, 712495, 1180706, 1424990, 2361412, 2849980, 2951765, 4132471, 5903530, 8264942, 11807060, 16529884, 20662355, 41324710, 82649420]

約数ペア:

[(1, 82649420), (2, 41324710), (4, 20662355), (5, 16529884), (7, 11807060), (10, 8264942), (14, 5903530), (20, 4132471), (28, 2951765), (29, 2849980), (35, 2361412), (58, 1424990), (70, 1180706), (116, 712495), (140, 590353), (145, 569996), (203, 407140), (290, 284998), (406, 203570), (580, 142499), (812, 101785), (1015, 81428), (2030, 40714), (4060, 20357)]