20563020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1609}}^1$

素因数の和:1695

約数の個数: 72

約数和(自身を含む): 63292320

約数和(自身を除く): 42729300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 1609, 2130, 2556, 3195, 3218, 4260, 4827, 6390, 6436, 8045, 9654, 12780, 14481, 16090, 19308, 24135, 28962, 32180, 48270, 57924, 72405, 96540, 114239, 144810, 228478, 289620, 342717, 456956, 571195, 685434, 1028151, 1142390, 1370868, 1713585, 2056302, 2284780, 3427170, 4112604, 5140755, 6854340, 10281510, 20563020]

約数ペア:

[(1, 20563020), (2, 10281510), (3, 6854340), (4, 5140755), (5, 4112604), (6, 3427170), (9, 2284780), (10, 2056302), (12, 1713585), (15, 1370868), (18, 1142390), (20, 1028151), (30, 685434), (36, 571195), (45, 456956), (60, 342717), (71, 289620), (90, 228478), (142, 144810), (180, 114239), (213, 96540), (284, 72405), (355, 57924), (426, 48270), (639, 32180), (710, 28962), (852, 24135), (1065, 19308), (1278, 16090), (1420, 14481), (1609, 12780), (2130, 9654), (2556, 8045), (3195, 6436), (3218, 6390), (4260, 4827)]