198315280

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{31379}}^1$

素因数の和:31471

約数の個数: 40

約数和(自身を含む): 466934400

約数和(自身を除く): 268619120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 31379, 62758, 125516, 156895, 251032, 313790, 502064, 627580, 1255160, 2478941, 2510320, 4957882, 9915764, 12394705, 19831528, 24789410, 39663056, 49578820, 99157640, 198315280]

約数ペア:

[(1, 198315280), (2, 99157640), (4, 49578820), (5, 39663056), (8, 24789410), (10, 19831528), (16, 12394705), (20, 9915764), (40, 4957882), (79, 2510320), (80, 2478941), (158, 1255160), (316, 627580), (395, 502064), (632, 313790), (790, 251032), (1264, 156895), (1580, 125516), (3160, 62758), (6320, 31379)]