254985220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{260189}}^1$

素因数の和:260212

約数の個数: 36

約数和(自身を含む): 622894860

約数和(自身を除く): 367909640

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 260189, 520378, 1040756, 1300945, 1821323, 2601890, 3642646, 5203780, 7285292, 9106615, 12749261, 18213230, 25498522, 36426460, 50997044, 63746305, 127492610, 254985220]

約数ペア:

[(1, 254985220), (2, 127492610), (4, 63746305), (5, 50997044), (7, 36426460), (10, 25498522), (14, 18213230), (20, 12749261), (28, 9106615), (35, 7285292), (49, 5203780), (70, 3642646), (98, 2601890), (140, 1821323), (196, 1300945), (245, 1040756), (490, 520378), (980, 260189)]