81728100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1279}}^1$

素因数の和:1370

約数の個数: 108

約数和(自身を含む): 259983360

約数和(自身を除く): 178255260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 71, 75, 90, 100, 142, 150, 180, 213, 225, 284, 300, 355, 426, 450, 639, 710, 852, 900, 1065, 1278, 1279, 1420, 1775, 2130, 2556, 2558, 3195, 3550, 3837, 4260, 5116, 5325, 6390, 6395, 7100, 7674, 10650, 11511, 12780, 12790, 15348, 15975, 19185, 21300, 23022, 25580, 31950, 31975, 38370, 46044, 57555, 63900, 63950, 76740, 90809, 95925, 115110, 127900, 181618, 191850, 230220, 272427, 287775, 363236, 383700, 454045, 544854, 575550, 817281, 908090, 1089708, 1151100, 1362135, 1634562, 1816180, 2270225, 2724270, 3269124, 4086405, 4540450, 5448540, 6810675, 8172810, 9080900, 13621350, 16345620, 20432025, 27242700, 40864050, 81728100]

約数ペア:

[(1, 81728100), (2, 40864050), (3, 27242700), (4, 20432025), (5, 16345620), (6, 13621350), (9, 9080900), (10, 8172810), (12, 6810675), (15, 5448540), (18, 4540450), (20, 4086405), (25, 3269124), (30, 2724270), (36, 2270225), (45, 1816180), (50, 1634562), (60, 1362135), (71, 1151100), (75, 1089708), (90, 908090), (100, 817281), (142, 575550), (150, 544854), (180, 454045), (213, 383700), (225, 363236), (284, 287775), (300, 272427), (355, 230220), (426, 191850), (450, 181618), (639, 127900), (710, 115110), (852, 95925), (900, 90809), (1065, 76740), (1278, 63950), (1279, 63900), (1420, 57555), (1775, 46044), (2130, 38370), (2556, 31975), (2558, 31950), (3195, 25580), (3550, 23022), (3837, 21300), (4260, 19185), (5116, 15975), (5325, 15348), (6390, 12790), (6395, 12780), (7100, 11511), (7674, 10650)]