4817780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 11249280

約数和(自身を除く): 6431500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 359, 610, 671, 718, 1220, 1342, 1436, 1795, 2684, 3355, 3590, 3949, 6710, 7180, 7898, 13420, 15796, 19745, 21899, 39490, 43798, 78980, 87596, 109495, 218990, 240889, 437980, 481778, 963556, 1204445, 2408890, 4817780]

約数ペア:

[(1, 4817780), (2, 2408890), (4, 1204445), (5, 963556), (10, 481778), (11, 437980), (20, 240889), (22, 218990), (44, 109495), (55, 87596), (61, 78980), (110, 43798), (122, 39490), (220, 21899), (244, 19745), (305, 15796), (359, 13420), (610, 7898), (671, 7180), (718, 6710), (1220, 3949), (1342, 3590), (1436, 3355), (1795, 2684)]