20702964410

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{281023}}^1$

素因数の和:281222

約数の個数: 32

約数和(自身を含む): 38241745920

約数和(自身を除く): 17538781510

約数列:

[1, 2, 5, 10, 53, 106, 139, 265, 278, 530, 695, 1390, 7367, 14734, 36835, 73670, 281023, 562046, 1405115, 2810230, 14894219, 29788438, 39062197, 74471095, 78124394, 148942190, 195310985, 390621970, 2070296441, 4140592882, 10351482205, 20702964410]

約数ペア:

[(1, 20702964410), (2, 10351482205), (5, 4140592882), (10, 2070296441), (53, 390621970), (106, 195310985), (139, 148942190), (265, 78124394), (278, 74471095), (530, 39062197), (695, 29788438), (1390, 14894219), (7367, 2810230), (14734, 1405115), (36835, 562046), (73670, 281023)]