489477218

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1$

素因数の和:722

約数の個数: 32

約数和(自身を含む): 768268800

約数和(自身を除く): 278791582

約数列:

[1, 2, 37, 74, 103, 149, 206, 298, 431, 862, 3811, 5513, 7622, 11026, 15347, 15947, 30694, 31894, 44393, 64219, 88786, 128438, 567839, 1135678, 1642541, 2376103, 3285082, 4752206, 6614557, 13229114, 244738609, 489477218]

約数ペア:

[(1, 489477218), (2, 244738609), (37, 13229114), (74, 6614557), (103, 4752206), (149, 3285082), (206, 2376103), (298, 1642541), (431, 1135678), (862, 567839), (3811, 128438), (5513, 88786), (7622, 64219), (11026, 44393), (15347, 31894), (15947, 30694)]