91200080

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{12809}}^1$

素因数の和:12911

約数の個数: 40

約数和(自身を含む): 214439400

約数和(自身を除く): 123239320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 12809, 25618, 51236, 64045, 102472, 128090, 204944, 256180, 512360, 1024720, 1140001, 2280002, 4560004, 5700005, 9120008, 11400010, 18240016, 22800020, 45600040, 91200080]

約数ペア:

[(1, 91200080), (2, 45600040), (4, 22800020), (5, 18240016), (8, 11400010), (10, 9120008), (16, 5700005), (20, 4560004), (40, 2280002), (80, 1140001), (89, 1024720), (178, 512360), (356, 256180), (445, 204944), (712, 128090), (890, 102472), (1424, 64045), (1780, 51236), (3560, 25618), (7120, 12809)]