19904490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2029}}^1$

素因数の和:2151

約数の個数: 48

約数和(自身を含む): 52252200

約数和(自身を除く): 32347710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 109, 218, 327, 545, 654, 981, 1090, 1635, 1962, 2029, 3270, 4058, 4905, 6087, 9810, 10145, 12174, 18261, 20290, 30435, 36522, 60870, 91305, 182610, 221161, 442322, 663483, 1105805, 1326966, 1990449, 2211610, 3317415, 3980898, 6634830, 9952245, 19904490]

約数ペア:

[(1, 19904490), (2, 9952245), (3, 6634830), (5, 3980898), (6, 3317415), (9, 2211610), (10, 1990449), (15, 1326966), (18, 1105805), (30, 663483), (45, 442322), (90, 221161), (109, 182610), (218, 91305), (327, 60870), (545, 36522), (654, 30435), (981, 20290), (1090, 18261), (1635, 12174), (1962, 10145), (2029, 9810), (3270, 6087), (4058, 4905)]