78901240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179321}}^1$

素因数の和:179343

約数の個数: 32

約数和(自身を含む): 193667760

約数和(自身を除く): 114766520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 179321, 358642, 717284, 896605, 1434568, 1793210, 1972531, 3586420, 3945062, 7172840, 7890124, 9862655, 15780248, 19725310, 39450620, 78901240]

約数ペア:

[(1, 78901240), (2, 39450620), (4, 19725310), (5, 15780248), (8, 9862655), (10, 7890124), (11, 7172840), (20, 3945062), (22, 3586420), (40, 1972531), (44, 1793210), (55, 1434568), (88, 896605), (110, 717284), (220, 358642), (440, 179321)]