630395620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{547}}^1\times {\mathrm{1987}}^1$

素因数の和:2572

約数の個数: 48

約数和(自身を含む): 1372674240

約数和(自身を除く): 742278620

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 547, 580, 1094, 1987, 2188, 2735, 3974, 5470, 7948, 9935, 10940, 15863, 19870, 31726, 39740, 57623, 63452, 79315, 115246, 158630, 230492, 288115, 317260, 576230, 1086889, 1152460, 2173778, 4347556, 5434445, 10868890, 21737780, 31519781, 63039562, 126079124, 157598905, 315197810, 630395620]

約数ペア:

[(1, 630395620), (2, 315197810), (4, 157598905), (5, 126079124), (10, 63039562), (20, 31519781), (29, 21737780), (58, 10868890), (116, 5434445), (145, 4347556), (290, 2173778), (547, 1152460), (580, 1086889), (1094, 576230), (1987, 317260), (2188, 288115), (2735, 230492), (3974, 158630), (5470, 115246), (7948, 79315), (9935, 63452), (10940, 57623), (15863, 39740), (19870, 31726)]