18619480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3847}}^1$

素因数の和:3880

約数の個数: 48

約数和(自身を含む): 46060560

約数和(自身を除く): 27441080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 3847, 4840, 7694, 15388, 19235, 30776, 38470, 42317, 76940, 84634, 153880, 169268, 211585, 338536, 423170, 465487, 846340, 930974, 1692680, 1861948, 2327435, 3723896, 4654870, 9309740, 18619480]

約数ペア:

[(1, 18619480), (2, 9309740), (4, 4654870), (5, 3723896), (8, 2327435), (10, 1861948), (11, 1692680), (20, 930974), (22, 846340), (40, 465487), (44, 423170), (55, 338536), (88, 211585), (110, 169268), (121, 153880), (220, 84634), (242, 76940), (440, 42317), (484, 38470), (605, 30776), (968, 19235), (1210, 15388), (2420, 7694), (3847, 4840)]