19808490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3907}}^1$

素因数の和:3943

約数の個数: 48

約数和(自身を含む): 51491808

約数和(自身を除く): 31683318

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 169, 195, 338, 390, 507, 845, 1014, 1690, 2535, 3907, 5070, 7814, 11721, 19535, 23442, 39070, 50791, 58605, 101582, 117210, 152373, 253955, 304746, 507910, 660283, 761865, 1320566, 1523730, 1980849, 3301415, 3961698, 6602830, 9904245, 19808490]

約数ペア:

[(1, 19808490), (2, 9904245), (3, 6602830), (5, 3961698), (6, 3301415), (10, 1980849), (13, 1523730), (15, 1320566), (26, 761865), (30, 660283), (39, 507910), (65, 304746), (78, 253955), (130, 152373), (169, 117210), (195, 101582), (338, 58605), (390, 50791), (507, 39070), (845, 23442), (1014, 19535), (1690, 11721), (2535, 7814), (3907, 5070)]