20997804940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{12703}}^1\times {\mathrm{11807}}^1$

素因数の和:24526

約数の個数: 48

約数和(自身を含む): 50402967552

約数和(自身を除く): 29405162612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 11807, 12703, 23614, 25406, 47228, 50812, 59035, 63515, 82649, 88921, 118070, 127030, 165298, 177842, 236140, 254060, 330596, 355684, 413245, 444605, 826490, 889210, 1652980, 1778420, 149984321, 299968642, 599937284, 749921605, 1049890247, 1499843210, 2099780494, 2999686420, 4199560988, 5249451235, 10498902470, 20997804940]

約数ペア:

[(1, 20997804940), (2, 10498902470), (4, 5249451235), (5, 4199560988), (7, 2999686420), (10, 2099780494), (14, 1499843210), (20, 1049890247), (28, 749921605), (35, 599937284), (70, 299968642), (140, 149984321), (11807, 1778420), (12703, 1652980), (23614, 889210), (25406, 826490), (47228, 444605), (50812, 413245), (59035, 355684), (63515, 330596), (82649, 254060), (88921, 236140), (118070, 177842), (127030, 165298)]