65930780

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 141474816

約数和(自身を除く): 75544036

約数列:

[1, 2, 4, 5, 10, 20, 101, 127, 202, 254, 257, 404, 505, 508, 514, 635, 1010, 1028, 1270, 1285, 2020, 2540, 2570, 5140, 12827, 25654, 25957, 32639, 51308, 51914, 64135, 65278, 103828, 128270, 129785, 130556, 163195, 256540, 259570, 326390, 519140, 652780, 3296539, 6593078, 13186156, 16482695, 32965390, 65930780]

約数ペア:

[(1, 65930780), (2, 32965390), (4, 16482695), (5, 13186156), (10, 6593078), (20, 3296539), (101, 652780), (127, 519140), (202, 326390), (254, 259570), (257, 256540), (404, 163195), (505, 130556), (508, 129785), (514, 128270), (635, 103828), (1010, 65278), (1028, 64135), (1270, 51914), (1285, 51308), (2020, 32639), (2540, 25957), (2570, 25654), (5140, 12827)]