20506860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10357}}^1$

素因数の和:10383

約数の個数: 72

約数和(自身を含む): 67865616

約数和(自身を除く): 47358756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10357, 20714, 31071, 41428, 51785, 62142, 93213, 103570, 113927, 124284, 155355, 186426, 207140, 227854, 310710, 341781, 372852, 455708, 466065, 569635, 621420, 683562, 932130, 1025343, 1139270, 1367124, 1708905, 1864260, 2050686, 2278540, 3417810, 4101372, 5126715, 6835620, 10253430, 20506860]

約数ペア:

[(1, 20506860), (2, 10253430), (3, 6835620), (4, 5126715), (5, 4101372), (6, 3417810), (9, 2278540), (10, 2050686), (11, 1864260), (12, 1708905), (15, 1367124), (18, 1139270), (20, 1025343), (22, 932130), (30, 683562), (33, 621420), (36, 569635), (44, 466065), (45, 455708), (55, 372852), (60, 341781), (66, 310710), (90, 227854), (99, 207140), (110, 186426), (132, 155355), (165, 124284), (180, 113927), (198, 103570), (220, 93213), (330, 62142), (396, 51785), (495, 41428), (660, 31071), (990, 20714), (1980, 10357)]