20707860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4861}}^1$

素因数の和:4944

約数の個数: 48

約数和(自身を含む): 58810752

約数和(自身を除く): 38102892

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4861, 9722, 14583, 19444, 24305, 29166, 48610, 58332, 72915, 97220, 145830, 291660, 345131, 690262, 1035393, 1380524, 1725655, 2070786, 3451310, 4141572, 5176965, 6902620, 10353930, 20707860]

約数ペア:

[(1, 20707860), (2, 10353930), (3, 6902620), (4, 5176965), (5, 4141572), (6, 3451310), (10, 2070786), (12, 1725655), (15, 1380524), (20, 1035393), (30, 690262), (60, 345131), (71, 291660), (142, 145830), (213, 97220), (284, 72915), (355, 58332), (426, 48610), (710, 29166), (852, 24305), (1065, 19444), (1420, 14583), (2130, 9722), (4260, 4861)]