20966790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1453}}^1$

素因数の和:1513

約数の個数: 64

約数和(自身を含む): 55694016

約数和(自身を除く): 34727226

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1443, 1453, 2405, 2886, 2906, 4359, 4810, 7215, 7265, 8718, 14430, 14530, 18889, 21795, 37778, 43590, 53761, 56667, 94445, 107522, 113334, 161283, 188890, 268805, 283335, 322566, 537610, 566670, 698893, 806415, 1397786, 1612830, 2096679, 3494465, 4193358, 6988930, 10483395, 20966790]

約数ペア:

[(1, 20966790), (2, 10483395), (3, 6988930), (5, 4193358), (6, 3494465), (10, 2096679), (13, 1612830), (15, 1397786), (26, 806415), (30, 698893), (37, 566670), (39, 537610), (65, 322566), (74, 283335), (78, 268805), (111, 188890), (130, 161283), (185, 113334), (195, 107522), (222, 94445), (370, 56667), (390, 53761), (481, 43590), (555, 37778), (962, 21795), (1110, 18889), (1443, 14530), (1453, 14430), (2405, 8718), (2886, 7265), (2906, 7215), (4359, 4810)]