19717380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109541}}^1$

素因数の和:109556

約数の個数: 36

約数和(自身を含む): 59809932

約数和(自身を除く): 40092552

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 109541, 219082, 328623, 438164, 547705, 657246, 985869, 1095410, 1314492, 1643115, 1971738, 2190820, 3286230, 3943476, 4929345, 6572460, 9858690, 19717380]

約数ペア:

[(1, 19717380), (2, 9858690), (3, 6572460), (4, 4929345), (5, 3943476), (6, 3286230), (9, 2190820), (10, 1971738), (12, 1643115), (15, 1314492), (18, 1095410), (20, 985869), (30, 657246), (36, 547705), (45, 438164), (60, 328623), (90, 219082), (180, 109541)]