1990978830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{22121987}}^1$

素因数の和:22122000

約数の個数: 24

約数和(自身を含む): 5176545192

約数和(自身を除く): 3185566362

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 22121987, 44243974, 66365961, 110609935, 132731922, 199097883, 221219870, 331829805, 398195766, 663659610, 995489415, 1990978830]

約数ペア:

[(1, 1990978830), (2, 995489415), (3, 663659610), (5, 398195766), (6, 331829805), (9, 221219870), (10, 199097883), (15, 132731922), (18, 110609935), (30, 66365961), (45, 44243974), (90, 22121987)]