19738980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109661}}^1$

素因数の和:109676

約数の個数: 36

約数和(自身を含む): 59875452

約数和(自身を除く): 40136472

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 109661, 219322, 328983, 438644, 548305, 657966, 986949, 1096610, 1315932, 1644915, 1973898, 2193220, 3289830, 3947796, 4934745, 6579660, 9869490, 19738980]

約数ペア:

[(1, 19738980), (2, 9869490), (3, 6579660), (4, 4934745), (5, 3947796), (6, 3289830), (9, 2193220), (10, 1973898), (12, 1644915), (15, 1315932), (18, 1096610), (20, 986949), (30, 657966), (36, 548305), (45, 438644), (60, 328983), (90, 219322), (180, 109661)]