20305300840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1125571}}^1$

素因数の和:1125634

約数の個数: 64

約数和(自身を含む): 51055945920

約数和(自身を除く): 30750645080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1640, 1804, 2255, 3608, 4510, 9020, 18040, 1125571, 2251142, 4502284, 5627855, 9004568, 11255710, 12381281, 22511420, 24762562, 45022840, 46148411, 49525124, 61906405, 92296822, 99050248, 123812810, 184593644, 230742055, 247625620, 369187288, 461484110, 495251240, 507632521, 922968220, 1015265042, 1845936440, 2030530084, 2538162605, 4061060168, 5076325210, 10152650420, 20305300840]

約数ペア:

[(1, 20305300840), (2, 10152650420), (4, 5076325210), (5, 4061060168), (8, 2538162605), (10, 2030530084), (11, 1845936440), (20, 1015265042), (22, 922968220), (40, 507632521), (41, 495251240), (44, 461484110), (55, 369187288), (82, 247625620), (88, 230742055), (110, 184593644), (164, 123812810), (205, 99050248), (220, 92296822), (328, 61906405), (410, 49525124), (440, 46148411), (451, 45022840), (820, 24762562), (902, 22511420), (1640, 12381281), (1804, 11255710), (2255, 9004568), (3608, 5627855), (4510, 4502284), (9020, 2251142), (18040, 1125571)]