66428752

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{821}}^1$

素因数の和:1231

約数の個数: 40

約数和(自身を含む): 139131720

約数和(自身を除く): 72702968

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 389, 778, 821, 1556, 1642, 3112, 3284, 5057, 6224, 6568, 10114, 10673, 13136, 20228, 21346, 40456, 42692, 80912, 85384, 170768, 319369, 638738, 1277476, 2554952, 4151797, 5109904, 8303594, 16607188, 33214376, 66428752]

約数ペア:

[(1, 66428752), (2, 33214376), (4, 16607188), (8, 8303594), (13, 5109904), (16, 4151797), (26, 2554952), (52, 1277476), (104, 638738), (208, 319369), (389, 170768), (778, 85384), (821, 80912), (1556, 42692), (1642, 40456), (3112, 21346), (3284, 20228), (5057, 13136), (6224, 10673), (6568, 10114)]