155580550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{421}}^1$

素因数の和:841

約数の個数: 48

約数和(自身を含む): 306118800

約数和(自身を除く): 150538250

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 389, 421, 475, 778, 842, 950, 1945, 2105, 3890, 4210, 7391, 7999, 9725, 10525, 14782, 15998, 19450, 21050, 36955, 39995, 73910, 79990, 163769, 184775, 199975, 327538, 369550, 399950, 818845, 1637690, 3111611, 4094225, 6223222, 8188450, 15558055, 31116110, 77790275, 155580550]

約数ペア:

[(1, 155580550), (2, 77790275), (5, 31116110), (10, 15558055), (19, 8188450), (25, 6223222), (38, 4094225), (50, 3111611), (95, 1637690), (190, 818845), (389, 399950), (421, 369550), (475, 327538), (778, 199975), (842, 184775), (950, 163769), (1945, 79990), (2105, 73910), (3890, 39995), (4210, 36955), (7391, 21050), (7999, 19450), (9725, 15998), (10525, 14782)]