129376516

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{2551}}^1$

素因数の和:2995

約数の個数: 24

約数和(自身を含む): 234375680

約数和(自身を除く): 104999164

約数列:

[1, 2, 4, 31, 62, 124, 409, 818, 1636, 2551, 5102, 10204, 12679, 25358, 50716, 79081, 158162, 316324, 1043359, 2086718, 4173436, 32344129, 64688258, 129376516]

約数ペア:

[(1, 129376516), (2, 64688258), (4, 32344129), (31, 4173436), (62, 2086718), (124, 1043359), (409, 316324), (818, 158162), (1636, 79081), (2551, 50716), (5102, 25358), (10204, 12679)]