213656240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{381529}}^1$

素因数の和:381549

約数の個数: 40

約数和(自身を含む): 567716640

約数和(自身を除く): 354060400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 381529, 763058, 1526116, 1907645, 2670703, 3052232, 3815290, 5341406, 6104464, 7630580, 10682812, 13353515, 15261160, 21365624, 26707030, 30522320, 42731248, 53414060, 106828120, 213656240]

約数ペア:

[(1, 213656240), (2, 106828120), (4, 53414060), (5, 42731248), (7, 30522320), (8, 26707030), (10, 21365624), (14, 15261160), (16, 13353515), (20, 10682812), (28, 7630580), (35, 6104464), (40, 5341406), (56, 3815290), (70, 3052232), (80, 2670703), (112, 1907645), (140, 1526116), (280, 763058), (560, 381529)]