20725740

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5483}}^1$

素因数の和:5508

約数の個数: 96

約数和(自身を含む): 73704960

約数和(自身を除く): 52979220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5483, 10966, 16449, 21932, 27415, 32898, 38381, 49347, 54830, 65796, 76762, 82245, 98694, 109660, 115143, 148041, 153524, 164490, 191905, 197388, 230286, 246735, 296082, 328980, 345429, 383810, 460572, 493470, 575715, 592164, 690858, 740205, 767620, 986940, 1036287, 1151430, 1381716, 1480410, 1727145, 2072574, 2302860, 2960820, 3454290, 4145148, 5181435, 6908580, 10362870, 20725740]

約数ペア:

[(1, 20725740), (2, 10362870), (3, 6908580), (4, 5181435), (5, 4145148), (6, 3454290), (7, 2960820), (9, 2302860), (10, 2072574), (12, 1727145), (14, 1480410), (15, 1381716), (18, 1151430), (20, 1036287), (21, 986940), (27, 767620), (28, 740205), (30, 690858), (35, 592164), (36, 575715), (42, 493470), (45, 460572), (54, 383810), (60, 345429), (63, 328980), (70, 296082), (84, 246735), (90, 230286), (105, 197388), (108, 191905), (126, 164490), (135, 153524), (140, 148041), (180, 115143), (189, 109660), (210, 98694), (252, 82245), (270, 76762), (315, 65796), (378, 54830), (420, 49347), (540, 38381), (630, 32898), (756, 27415), (945, 21932), (1260, 16449), (1890, 10966), (3780, 5483)]