172465640

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{31019}}^1$

素因数の和:31169

約数の個数: 32

約数和(自身を含む): 390852000

約数和(自身を除く): 218386360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 31019, 62038, 124076, 155095, 248152, 310190, 620380, 1240760, 4311641, 8623282, 17246564, 21558205, 34493128, 43116410, 86232820, 172465640]

約数ペア:

[(1, 172465640), (2, 86232820), (4, 43116410), (5, 34493128), (8, 21558205), (10, 17246564), (20, 8623282), (40, 4311641), (139, 1240760), (278, 620380), (556, 310190), (695, 248152), (1112, 155095), (1390, 124076), (2780, 62038), (5560, 31019)]