210131020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{2801}}^1$

素因数の和:2863

約数の個数: 72

約数和(自身を含む): 500863104

約数和(自身を除く): 290732084

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 484, 605, 620, 682, 1210, 1364, 1705, 2420, 2801, 3410, 3751, 5602, 6820, 7502, 11204, 14005, 15004, 18755, 28010, 30811, 37510, 56020, 61622, 75020, 86831, 123244, 154055, 173662, 308110, 338921, 347324, 434155, 616220, 677842, 868310, 955141, 1355684, 1694605, 1736620, 1910282, 3389210, 3820564, 4775705, 6778420, 9551410, 10506551, 19102820, 21013102, 42026204, 52532755, 105065510, 210131020]

約数ペア:

[(1, 210131020), (2, 105065510), (4, 52532755), (5, 42026204), (10, 21013102), (11, 19102820), (20, 10506551), (22, 9551410), (31, 6778420), (44, 4775705), (55, 3820564), (62, 3389210), (110, 1910282), (121, 1736620), (124, 1694605), (155, 1355684), (220, 955141), (242, 868310), (310, 677842), (341, 616220), (484, 434155), (605, 347324), (620, 338921), (682, 308110), (1210, 173662), (1364, 154055), (1705, 123244), (2420, 86831), (2801, 75020), (3410, 61622), (3751, 56020), (5602, 37510), (6820, 30811), (7502, 28010), (11204, 18755), (14005, 15004)]