28432580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 67925760

約数和(自身を除く): 39493180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 379, 484, 605, 620, 682, 758, 1210, 1364, 1516, 1705, 1895, 2420, 3410, 3751, 3790, 4169, 6820, 7502, 7580, 8338, 11749, 15004, 16676, 18755, 20845, 23498, 37510, 41690, 45859, 46996, 58745, 75020, 83380, 91718, 117490, 129239, 183436, 229295, 234980, 258478, 458590, 516956, 646195, 917180, 1292390, 1421629, 2584780, 2843258, 5686516, 7108145, 14216290, 28432580]

約数ペア:

[(1, 28432580), (2, 14216290), (4, 7108145), (5, 5686516), (10, 2843258), (11, 2584780), (20, 1421629), (22, 1292390), (31, 917180), (44, 646195), (55, 516956), (62, 458590), (110, 258478), (121, 234980), (124, 229295), (155, 183436), (220, 129239), (242, 117490), (310, 91718), (341, 83380), (379, 75020), (484, 58745), (605, 46996), (620, 45859), (682, 41690), (758, 37510), (1210, 23498), (1364, 20845), (1516, 18755), (1705, 16676), (1895, 15004), (2420, 11749), (3410, 8338), (3751, 7580), (3790, 7502), (4169, 6820)]