278328128

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{25733}}^1$

素因数の和:25771

約数の個数: 42

約数和(自身を含む): 598083894

約数和(自身を除く): 319755766

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 169, 208, 338, 416, 676, 832, 1352, 2704, 5408, 10816, 25733, 51466, 102932, 205864, 334529, 411728, 669058, 823456, 1338116, 1646912, 2676232, 4348877, 5352464, 8697754, 10704928, 17395508, 21409856, 34791016, 69582032, 139164064, 278328128]

約数ペア:

[(1, 278328128), (2, 139164064), (4, 69582032), (8, 34791016), (13, 21409856), (16, 17395508), (26, 10704928), (32, 8697754), (52, 5352464), (64, 4348877), (104, 2676232), (169, 1646912), (208, 1338116), (338, 823456), (416, 669058), (676, 411728), (832, 334529), (1352, 205864), (2704, 102932), (5408, 51466), (10816, 25733)]