81127060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 209018880

約数和(自身を除く): 127891820

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 89, 119, 140, 170, 178, 238, 340, 356, 383, 445, 476, 595, 623, 766, 890, 1190, 1246, 1513, 1532, 1780, 1915, 2380, 2492, 2681, 3026, 3115, 3830, 5362, 6052, 6230, 6511, 7565, 7660, 10591, 10724, 12460, 13022, 13405, 15130, 21182, 26044, 26810, 30260, 32555, 34087, 42364, 45577, 52955, 53620, 65110, 68174, 91154, 105910, 130220, 136348, 170435, 182308, 211820, 227885, 238609, 340870, 455770, 477218, 579479, 681740, 911540, 954436, 1158958, 1193045, 2317916, 2386090, 2897395, 4056353, 4772180, 5794790, 8112706, 11589580, 16225412, 20281765, 40563530, 81127060]

約数ペア:

[(1, 81127060), (2, 40563530), (4, 20281765), (5, 16225412), (7, 11589580), (10, 8112706), (14, 5794790), (17, 4772180), (20, 4056353), (28, 2897395), (34, 2386090), (35, 2317916), (68, 1193045), (70, 1158958), (85, 954436), (89, 911540), (119, 681740), (140, 579479), (170, 477218), (178, 455770), (238, 340870), (340, 238609), (356, 227885), (383, 211820), (445, 182308), (476, 170435), (595, 136348), (623, 130220), (766, 105910), (890, 91154), (1190, 68174), (1246, 65110), (1513, 53620), (1532, 52955), (1780, 45577), (1915, 42364), (2380, 34087), (2492, 32555), (2681, 30260), (3026, 26810), (3115, 26044), (3830, 21182), (5362, 15130), (6052, 13405), (6230, 13022), (6511, 12460), (7565, 10724), (7660, 10591)]