20679660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{877}}^1$

素因数の和:1023

約数の個数: 72

約数和(自身を含む): 63279216

約数和(自身を除く): 42599556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 877, 1179, 1310, 1572, 1754, 1965, 2358, 2620, 2631, 3508, 3930, 4385, 4716, 5262, 5895, 7860, 7893, 8770, 10524, 11790, 13155, 15786, 17540, 23580, 26310, 31572, 39465, 52620, 78930, 114887, 157860, 229774, 344661, 459548, 574435, 689322, 1033983, 1148870, 1378644, 1723305, 2067966, 2297740, 3446610, 4135932, 5169915, 6893220, 10339830, 20679660]

約数ペア:

[(1, 20679660), (2, 10339830), (3, 6893220), (4, 5169915), (5, 4135932), (6, 3446610), (9, 2297740), (10, 2067966), (12, 1723305), (15, 1378644), (18, 1148870), (20, 1033983), (30, 689322), (36, 574435), (45, 459548), (60, 344661), (90, 229774), (131, 157860), (180, 114887), (262, 78930), (393, 52620), (524, 39465), (655, 31572), (786, 26310), (877, 23580), (1179, 17540), (1310, 15786), (1572, 13155), (1754, 11790), (1965, 10524), (2358, 8770), (2620, 7893), (2631, 7860), (3508, 5895), (3930, 5262), (4385, 4716)]