16440080

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2309}}^1$

素因数の和:2411

約数の個数: 40

約数和(自身を含む): 38669400

約数和(自身を除く): 22229320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 2309, 3560, 4618, 7120, 9236, 11545, 18472, 23090, 36944, 46180, 92360, 184720, 205501, 411002, 822004, 1027505, 1644008, 2055010, 3288016, 4110020, 8220040, 16440080]

約数ペア:

[(1, 16440080), (2, 8220040), (4, 4110020), (5, 3288016), (8, 2055010), (10, 1644008), (16, 1027505), (20, 822004), (40, 411002), (80, 205501), (89, 184720), (178, 92360), (356, 46180), (445, 36944), (712, 23090), (890, 18472), (1424, 11545), (1780, 9236), (2309, 7120), (3560, 4618)]