20980370

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4801}}^1$

素因数の和:4850

約数の個数: 32

約数和(自身を含む): 41489280

約数和(自身を除く): 20508910

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 4801, 9602, 24005, 48010, 91219, 110423, 182438, 220846, 456095, 552115, 912190, 1104230, 2098037, 4196074, 10490185, 20980370]

約数ペア:

[(1, 20980370), (2, 10490185), (5, 4196074), (10, 2098037), (19, 1104230), (23, 912190), (38, 552115), (46, 456095), (95, 220846), (115, 182438), (190, 110423), (230, 91219), (437, 48010), (874, 24005), (2185, 9602), (4370, 4801)]