18452500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^2\times {\mathrm{61}}^1$

素因数の和:107

約数の個数: 90

約数和(自身を含む): 45080882

約数和(自身を除く): 26628382

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 61, 100, 110, 121, 122, 125, 220, 242, 244, 250, 275, 305, 484, 500, 550, 605, 610, 625, 671, 1100, 1210, 1220, 1250, 1342, 1375, 1525, 2420, 2500, 2684, 2750, 3025, 3050, 3355, 5500, 6050, 6100, 6710, 6875, 7381, 7625, 12100, 13420, 13750, 14762, 15125, 15250, 16775, 27500, 29524, 30250, 30500, 33550, 36905, 38125, 60500, 67100, 73810, 75625, 76250, 83875, 147620, 151250, 152500, 167750, 184525, 302500, 335500, 369050, 419375, 738100, 838750, 922625, 1677500, 1845250, 3690500, 4613125, 9226250, 18452500]

約数ペア:

[(1, 18452500), (2, 9226250), (4, 4613125), (5, 3690500), (10, 1845250), (11, 1677500), (20, 922625), (22, 838750), (25, 738100), (44, 419375), (50, 369050), (55, 335500), (61, 302500), (100, 184525), (110, 167750), (121, 152500), (122, 151250), (125, 147620), (220, 83875), (242, 76250), (244, 75625), (250, 73810), (275, 67100), (305, 60500), (484, 38125), (500, 36905), (550, 33550), (605, 30500), (610, 30250), (625, 29524), (671, 27500), (1100, 16775), (1210, 15250), (1220, 15125), (1250, 14762), (1342, 13750), (1375, 13420), (1525, 12100), (2420, 7625), (2500, 7381), (2684, 6875), (2750, 6710), (3025, 6100), (3050, 6050), (3355, 5500)]