81192100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2381}}^1$

素因数の和:2437

約数の個数: 72

約数和(自身を含む): 198487296

約数和(自身を除く): 117295196

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 31, 44, 50, 55, 62, 100, 110, 124, 155, 220, 275, 310, 341, 550, 620, 682, 775, 1100, 1364, 1550, 1705, 2381, 3100, 3410, 4762, 6820, 8525, 9524, 11905, 17050, 23810, 26191, 34100, 47620, 52382, 59525, 73811, 104764, 119050, 130955, 147622, 238100, 261910, 295244, 369055, 523820, 654775, 738110, 811921, 1309550, 1476220, 1623842, 1845275, 2619100, 3247684, 3690550, 4059605, 7381100, 8119210, 16238420, 20298025, 40596050, 81192100]

約数ペア:

[(1, 81192100), (2, 40596050), (4, 20298025), (5, 16238420), (10, 8119210), (11, 7381100), (20, 4059605), (22, 3690550), (25, 3247684), (31, 2619100), (44, 1845275), (50, 1623842), (55, 1476220), (62, 1309550), (100, 811921), (110, 738110), (124, 654775), (155, 523820), (220, 369055), (275, 295244), (310, 261910), (341, 238100), (550, 147622), (620, 130955), (682, 119050), (775, 104764), (1100, 73811), (1364, 59525), (1550, 52382), (1705, 47620), (2381, 34100), (3100, 26191), (3410, 23810), (4762, 17050), (6820, 11905), (8525, 9524)]