20542860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8779}}^1$

素因数の和:8807

約数の個数: 72

約数和(自身を含む): 67114320

約数和(自身を除く): 46571460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8779, 17558, 26337, 35116, 43895, 52674, 79011, 87790, 105348, 114127, 131685, 158022, 175580, 228254, 263370, 316044, 342381, 395055, 456508, 526740, 570635, 684762, 790110, 1027143, 1141270, 1369524, 1580220, 1711905, 2054286, 2282540, 3423810, 4108572, 5135715, 6847620, 10271430, 20542860]

約数ペア:

[(1, 20542860), (2, 10271430), (3, 6847620), (4, 5135715), (5, 4108572), (6, 3423810), (9, 2282540), (10, 2054286), (12, 1711905), (13, 1580220), (15, 1369524), (18, 1141270), (20, 1027143), (26, 790110), (30, 684762), (36, 570635), (39, 526740), (45, 456508), (52, 395055), (60, 342381), (65, 316044), (78, 263370), (90, 228254), (117, 175580), (130, 158022), (156, 131685), (180, 114127), (195, 105348), (234, 87790), (260, 79011), (390, 52674), (468, 43895), (585, 35116), (780, 26337), (1170, 17558), (2340, 8779)]