15520660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 34836480

約数和(自身を除く): 19315820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 191, 239, 340, 382, 478, 764, 955, 956, 1195, 1910, 2390, 3247, 3820, 4063, 4780, 6494, 8126, 12988, 16235, 16252, 20315, 32470, 40630, 45649, 64940, 81260, 91298, 182596, 228245, 456490, 776033, 912980, 1552066, 3104132, 3880165, 7760330, 15520660]

約数ペア:

[(1, 15520660), (2, 7760330), (4, 3880165), (5, 3104132), (10, 1552066), (17, 912980), (20, 776033), (34, 456490), (68, 228245), (85, 182596), (170, 91298), (191, 81260), (239, 64940), (340, 45649), (382, 40630), (478, 32470), (764, 20315), (955, 16252), (956, 16235), (1195, 12988), (1910, 8126), (2390, 6494), (3247, 4780), (3820, 4063)]