278984918

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:464

約数の個数: 32

約数和(自身を含む): 435132000

約数和(自身を除く): 156147082

約数列:

[1, 2, 67, 89, 134, 149, 157, 178, 298, 314, 5963, 9983, 10519, 11926, 13261, 13973, 19966, 21038, 23393, 26522, 27946, 46786, 888487, 936191, 1567331, 1776974, 1872382, 2081977, 3134662, 4163954, 139492459, 278984918]

約数ペア:

[(1, 278984918), (2, 139492459), (67, 4163954), (89, 3134662), (134, 2081977), (149, 1872382), (157, 1776974), (178, 1567331), (298, 936191), (314, 888487), (5963, 46786), (9983, 27946), (10519, 26522), (11926, 23393), (13261, 21038), (13973, 19966)]