31280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:53

約数の個数: 40

約数和(自身を含む): 80352

約数和(自身を除く): 49072

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 80, 85, 92, 115, 136, 170, 184, 230, 272, 340, 368, 391, 460, 680, 782, 920, 1360, 1564, 1840, 1955, 3128, 3910, 6256, 7820, 15640, 31280]

約数ペア:

[(1, 31280), (2, 15640), (4, 7820), (5, 6256), (8, 3910), (10, 3128), (16, 1955), (17, 1840), (20, 1564), (23, 1360), (34, 920), (40, 782), (46, 680), (68, 460), (80, 391), (85, 368), (92, 340), (115, 272), (136, 230), (170, 184)]