81976284

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1607}}^1$

素因数の和:1739

約数の個数: 72

約数和(自身を含む): 225345120

約数和(自身を除く): 143368836

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 109, 117, 156, 218, 234, 327, 436, 468, 654, 981, 1308, 1417, 1607, 1962, 2834, 3214, 3924, 4251, 4821, 5668, 6428, 8502, 9642, 12753, 14463, 17004, 19284, 20891, 25506, 28926, 41782, 51012, 57852, 62673, 83564, 125346, 175163, 188019, 250692, 350326, 376038, 525489, 700652, 752076, 1050978, 1576467, 2101956, 2277119, 3152934, 4554238, 6305868, 6831357, 9108476, 13662714, 20494071, 27325428, 40988142, 81976284]

約数ペア:

[(1, 81976284), (2, 40988142), (3, 27325428), (4, 20494071), (6, 13662714), (9, 9108476), (12, 6831357), (13, 6305868), (18, 4554238), (26, 3152934), (36, 2277119), (39, 2101956), (52, 1576467), (78, 1050978), (109, 752076), (117, 700652), (156, 525489), (218, 376038), (234, 350326), (327, 250692), (436, 188019), (468, 175163), (654, 125346), (981, 83564), (1308, 62673), (1417, 57852), (1607, 51012), (1962, 41782), (2834, 28926), (3214, 25506), (3924, 20891), (4251, 19284), (4821, 17004), (5668, 14463), (6428, 12753), (8502, 9642)]