23279720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 31152280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 79, 106, 139, 158, 212, 265, 278, 316, 395, 424, 530, 556, 632, 695, 790, 1060, 1112, 1390, 1580, 2120, 2780, 3160, 4187, 5560, 7367, 8374, 10981, 14734, 16748, 20935, 21962, 29468, 33496, 36835, 41870, 43924, 54905, 58936, 73670, 83740, 87848, 109810, 147340, 167480, 219620, 294680, 439240, 581993, 1163986, 2327972, 2909965, 4655944, 5819930, 11639860, 23279720]

約数ペア:

[(1, 23279720), (2, 11639860), (4, 5819930), (5, 4655944), (8, 2909965), (10, 2327972), (20, 1163986), (40, 581993), (53, 439240), (79, 294680), (106, 219620), (139, 167480), (158, 147340), (212, 109810), (265, 87848), (278, 83740), (316, 73670), (395, 58936), (424, 54905), (530, 43924), (556, 41870), (632, 36835), (695, 33496), (790, 29468), (1060, 21962), (1112, 20935), (1390, 16748), (1580, 14734), (2120, 10981), (2780, 8374), (3160, 7367), (4187, 5560)]