178673456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{12821}}^1$

素因数の和:12909

約数の個数: 40

約数和(自身を含む): 378402864

約数和(自身を除く): 199729408

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1742, 3484, 6968, 12821, 13936, 25642, 51284, 102568, 166673, 205136, 333346, 666692, 859007, 1333384, 1718014, 2666768, 3436028, 6872056, 11167091, 13744112, 22334182, 44668364, 89336728, 178673456]

約数ペア:

[(1, 178673456), (2, 89336728), (4, 44668364), (8, 22334182), (13, 13744112), (16, 11167091), (26, 6872056), (52, 3436028), (67, 2666768), (104, 1718014), (134, 1333384), (208, 859007), (268, 666692), (536, 333346), (871, 205136), (1072, 166673), (1742, 102568), (3484, 51284), (6968, 25642), (12821, 13936)]