638577976

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{691}}^1\times {\mathrm{1627}}^1$

素因数の和:2395

約数の個数: 32

約数和(自身を含む): 1216702080

約数和(自身を除く): 578124104

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 691, 1382, 1627, 2764, 3254, 5528, 6508, 13016, 49061, 98122, 115517, 196244, 231034, 392488, 462068, 924136, 1124257, 2248514, 4497028, 8994056, 79822247, 159644494, 319288988, 638577976]

約数ペア:

[(1, 638577976), (2, 319288988), (4, 159644494), (8, 79822247), (71, 8994056), (142, 4497028), (284, 2248514), (568, 1124257), (691, 924136), (1382, 462068), (1627, 392488), (2764, 231034), (3254, 196244), (5528, 115517), (6508, 98122), (13016, 49061)]