8242220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{521}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 19994688

約数和(自身を除く): 11752468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 521, 565, 791, 1042, 1130, 1582, 2084, 2260, 2605, 3164, 3647, 3955, 5210, 7294, 7910, 10420, 14588, 15820, 18235, 36470, 58873, 72940, 117746, 235492, 294365, 412111, 588730, 824222, 1177460, 1648444, 2060555, 4121110, 8242220]

約数ペア:

[(1, 8242220), (2, 4121110), (4, 2060555), (5, 1648444), (7, 1177460), (10, 824222), (14, 588730), (20, 412111), (28, 294365), (35, 235492), (70, 117746), (113, 72940), (140, 58873), (226, 36470), (452, 18235), (521, 15820), (565, 14588), (791, 10420), (1042, 7910), (1130, 7294), (1582, 5210), (2084, 3955), (2260, 3647), (2605, 3164)]