87215920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{99109}}^1$

素因数の和:99133

約数の個数: 40

約数和(自身を含む): 221213520

約数和(自身を除く): 133997600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 99109, 198218, 396436, 495545, 792872, 991090, 1090199, 1585744, 1982180, 2180398, 3964360, 4360796, 5450995, 7928720, 8721592, 10901990, 17443184, 21803980, 43607960, 87215920]

約数ペア:

[(1, 87215920), (2, 43607960), (4, 21803980), (5, 17443184), (8, 10901990), (10, 8721592), (11, 7928720), (16, 5450995), (20, 4360796), (22, 3964360), (40, 2180398), (44, 1982180), (55, 1585744), (80, 1090199), (88, 991090), (110, 792872), (176, 495545), (220, 396436), (440, 198218), (880, 99109)]