64948240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{115979}}^1$

素因数の和:115999

約数の個数: 40

約数和(自身を含む): 172578240

約数和(自身を除く): 107630000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 115979, 231958, 463916, 579895, 811853, 927832, 1159790, 1623706, 1855664, 2319580, 3247412, 4059265, 4639160, 6494824, 8118530, 9278320, 12989648, 16237060, 32474120, 64948240]

約数ペア:

[(1, 64948240), (2, 32474120), (4, 16237060), (5, 12989648), (7, 9278320), (8, 8118530), (10, 6494824), (14, 4639160), (16, 4059265), (20, 3247412), (28, 2319580), (35, 1855664), (40, 1623706), (56, 1159790), (70, 927832), (80, 811853), (112, 579895), (140, 463916), (280, 231958), (560, 115979)]