220179980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{18691}}^1$

素因数の和:18750

約数の個数: 48

約数和(自身を含む): 502440960

約数和(自身を除く): 282260980

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 18691, 37382, 74764, 93455, 186910, 355129, 373820, 579421, 710258, 1158842, 1420516, 1775645, 2317684, 2897105, 3551290, 5794210, 7102580, 11008999, 11588420, 22017998, 44035996, 55044995, 110089990, 220179980]

約数ペア:

[(1, 220179980), (2, 110089990), (4, 55044995), (5, 44035996), (10, 22017998), (19, 11588420), (20, 11008999), (31, 7102580), (38, 5794210), (62, 3551290), (76, 2897105), (95, 2317684), (124, 1775645), (155, 1420516), (190, 1158842), (310, 710258), (380, 579421), (589, 373820), (620, 355129), (1178, 186910), (2356, 93455), (2945, 74764), (5890, 37382), (11780, 18691)]