404373320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{777641}}^1$

素因数の和:777665

約数の個数: 32

約数和(自身を含む): 979828920

約数和(自身を除く): 575455600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 777641, 1555282, 3110564, 3888205, 6221128, 7776410, 10109333, 15552820, 20218666, 31105640, 40437332, 50546665, 80874664, 101093330, 202186660, 404373320]

約数ペア:

[(1, 404373320), (2, 202186660), (4, 101093330), (5, 80874664), (8, 50546665), (10, 40437332), (13, 31105640), (20, 20218666), (26, 15552820), (40, 10109333), (52, 7776410), (65, 6221128), (104, 3888205), (130, 3110564), (260, 1555282), (520, 777641)]