19955940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10729}}^1$

素因数の和:10772

約数の個数: 48

約数和(自身を含む): 57684480

約数和(自身を除く): 37728540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 10729, 21458, 32187, 42916, 53645, 64374, 107290, 128748, 160935, 214580, 321870, 332599, 643740, 665198, 997797, 1330396, 1662995, 1995594, 3325990, 3991188, 4988985, 6651980, 9977970, 19955940]

約数ペア:

[(1, 19955940), (2, 9977970), (3, 6651980), (4, 4988985), (5, 3991188), (6, 3325990), (10, 1995594), (12, 1662995), (15, 1330396), (20, 997797), (30, 665198), (31, 643740), (60, 332599), (62, 321870), (93, 214580), (124, 160935), (155, 128748), (186, 107290), (310, 64374), (372, 53645), (465, 42916), (620, 32187), (930, 21458), (1860, 10729)]