201896980

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{787}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 432101376

約数和(自身を除く): 230204396

約数列:

[1, 2, 4, 5, 10, 20, 101, 127, 202, 254, 404, 505, 508, 635, 787, 1010, 1270, 1574, 2020, 2540, 3148, 3935, 7870, 12827, 15740, 25654, 51308, 64135, 79487, 99949, 128270, 158974, 199898, 256540, 317948, 397435, 399796, 499745, 794870, 999490, 1589740, 1998980, 10094849, 20189698, 40379396, 50474245, 100948490, 201896980]

約数ペア:

[(1, 201896980), (2, 100948490), (4, 50474245), (5, 40379396), (10, 20189698), (20, 10094849), (101, 1998980), (127, 1589740), (202, 999490), (254, 794870), (404, 499745), (505, 399796), (508, 397435), (635, 317948), (787, 256540), (1010, 199898), (1270, 158974), (1574, 128270), (2020, 99949), (2540, 79487), (3148, 64135), (3935, 51308), (7870, 25654), (12827, 15740)]