219493640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{177011}}^1$

素因数の和:177053

約数の個数: 32

約数和(自身を含む): 509794560

約数和(自身を除く): 290300920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 177011, 354022, 708044, 885055, 1416088, 1770110, 3540220, 5487341, 7080440, 10974682, 21949364, 27436705, 43898728, 54873410, 109746820, 219493640]

約数ペア:

[(1, 219493640), (2, 109746820), (4, 54873410), (5, 43898728), (8, 27436705), (10, 21949364), (20, 10974682), (31, 7080440), (40, 5487341), (62, 3540220), (124, 1770110), (155, 1416088), (248, 885055), (310, 708044), (620, 354022), (1240, 177011)]