199957992

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{640891}}^1$

素因数の和:640913

約数の個数: 32

約数和(自身を含む): 538349280

約数和(自身を除く): 338391288

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 640891, 1281782, 1922673, 2563564, 3845346, 5127128, 7690692, 8331583, 15381384, 16663166, 24994749, 33326332, 49989498, 66652664, 99978996, 199957992]

約数ペア:

[(1, 199957992), (2, 99978996), (3, 66652664), (4, 49989498), (6, 33326332), (8, 24994749), (12, 16663166), (13, 15381384), (24, 8331583), (26, 7690692), (39, 5127128), (52, 3845346), (78, 2563564), (104, 1922673), (156, 1281782), (312, 640891)]