19261540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{661}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 42706944

約数和(自身を除く): 23445404

約数列:

[1, 2, 4, 5, 10, 20, 31, 47, 62, 94, 124, 155, 188, 235, 310, 470, 620, 661, 940, 1322, 1457, 2644, 2914, 3305, 5828, 6610, 7285, 13220, 14570, 20491, 29140, 31067, 40982, 62134, 81964, 102455, 124268, 155335, 204910, 310670, 409820, 621340, 963077, 1926154, 3852308, 4815385, 9630770, 19261540]

約数ペア:

[(1, 19261540), (2, 9630770), (4, 4815385), (5, 3852308), (10, 1926154), (20, 963077), (31, 621340), (47, 409820), (62, 310670), (94, 204910), (124, 155335), (155, 124268), (188, 102455), (235, 81964), (310, 62134), (470, 40982), (620, 31067), (661, 29140), (940, 20491), (1322, 14570), (1457, 13220), (2644, 7285), (2914, 6610), (3305, 5828)]