28285640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22811}}^1$

素因数の和:22853

約数の個数: 32

約数和(自身を含む): 65698560

約数和(自身を除く): 37412920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 22811, 45622, 91244, 114055, 182488, 228110, 456220, 707141, 912440, 1414282, 2828564, 3535705, 5657128, 7071410, 14142820, 28285640]

約数ペア:

[(1, 28285640), (2, 14142820), (4, 7071410), (5, 5657128), (8, 3535705), (10, 2828564), (20, 1414282), (31, 912440), (40, 707141), (62, 456220), (124, 228110), (155, 182488), (248, 114055), (310, 91244), (620, 45622), (1240, 22811)]