87561990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4889}}^1$

素因数の和:5101

約数の個数: 48

約数和(自身を含む): 228852000

約数和(自身を除く): 141290010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 199, 398, 597, 995, 1194, 1791, 1990, 2985, 3582, 4889, 5970, 8955, 9778, 14667, 17910, 24445, 29334, 44001, 48890, 73335, 88002, 146670, 220005, 440010, 972911, 1945822, 2918733, 4864555, 5837466, 8756199, 9729110, 14593665, 17512398, 29187330, 43780995, 87561990]

約数ペア:

[(1, 87561990), (2, 43780995), (3, 29187330), (5, 17512398), (6, 14593665), (9, 9729110), (10, 8756199), (15, 5837466), (18, 4864555), (30, 2918733), (45, 1945822), (90, 972911), (199, 440010), (398, 220005), (597, 146670), (995, 88002), (1194, 73335), (1791, 48890), (1990, 44001), (2985, 29334), (3582, 24445), (4889, 17910), (5970, 14667), (8955, 9778)]