31239020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{199}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 67737600

約数和(自身を除く): 36498580

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 167, 188, 199, 235, 334, 398, 470, 668, 796, 835, 940, 995, 1670, 1990, 3340, 3980, 7849, 9353, 15698, 18706, 31396, 33233, 37412, 39245, 46765, 66466, 78490, 93530, 132932, 156980, 166165, 187060, 332330, 664660, 1561951, 3123902, 6247804, 7809755, 15619510, 31239020]

約数ペア:

[(1, 31239020), (2, 15619510), (4, 7809755), (5, 6247804), (10, 3123902), (20, 1561951), (47, 664660), (94, 332330), (167, 187060), (188, 166165), (199, 156980), (235, 132932), (334, 93530), (398, 78490), (470, 66466), (668, 46765), (796, 39245), (835, 37412), (940, 33233), (995, 31396), (1670, 18706), (1990, 15698), (3340, 9353), (3980, 7849)]