31460280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{641}}^1$

素因数の和:1064

約数の個数: 64

約数和(自身を含む): 94759200

約数和(自身を除く): 63298920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 409, 641, 818, 1227, 1282, 1636, 1923, 2045, 2454, 2564, 3205, 3272, 3846, 4090, 4908, 5128, 6135, 6410, 7692, 8180, 9615, 9816, 12270, 12820, 15384, 16360, 19230, 24540, 25640, 38460, 49080, 76920, 262169, 524338, 786507, 1048676, 1310845, 1573014, 2097352, 2621690, 3146028, 3932535, 5243380, 6292056, 7865070, 10486760, 15730140, 31460280]

約数ペア:

[(1, 31460280), (2, 15730140), (3, 10486760), (4, 7865070), (5, 6292056), (6, 5243380), (8, 3932535), (10, 3146028), (12, 2621690), (15, 2097352), (20, 1573014), (24, 1310845), (30, 1048676), (40, 786507), (60, 524338), (120, 262169), (409, 76920), (641, 49080), (818, 38460), (1227, 25640), (1282, 24540), (1636, 19230), (1923, 16360), (2045, 15384), (2454, 12820), (2564, 12270), (3205, 9816), (3272, 9615), (3846, 8180), (4090, 7692), (4908, 6410), (5128, 6135)]