18184100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 43913856

約数和(自身を除く): 25729756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 61, 100, 110, 122, 220, 244, 271, 275, 305, 542, 550, 610, 671, 1084, 1100, 1220, 1342, 1355, 1525, 2684, 2710, 2981, 3050, 3355, 5420, 5962, 6100, 6710, 6775, 11924, 13420, 13550, 14905, 16531, 16775, 27100, 29810, 33062, 33550, 59620, 66124, 67100, 74525, 82655, 149050, 165310, 181841, 298100, 330620, 363682, 413275, 727364, 826550, 909205, 1653100, 1818410, 3636820, 4546025, 9092050, 18184100]

約数ペア:

[(1, 18184100), (2, 9092050), (4, 4546025), (5, 3636820), (10, 1818410), (11, 1653100), (20, 909205), (22, 826550), (25, 727364), (44, 413275), (50, 363682), (55, 330620), (61, 298100), (100, 181841), (110, 165310), (122, 149050), (220, 82655), (244, 74525), (271, 67100), (275, 66124), (305, 59620), (542, 33550), (550, 33062), (610, 29810), (671, 27100), (1084, 16775), (1100, 16531), (1220, 14905), (1342, 13550), (1355, 13420), (1525, 11924), (2684, 6775), (2710, 6710), (2981, 6100), (3050, 5962), (3355, 5420)]