80845520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4657}}^1$

素因数の和:4708

約数の個数: 80

約数和(自身を含む): 221795328

約数和(自身を除く): 140949808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 4657, 8680, 9314, 17360, 18628, 23285, 32599, 37256, 46570, 65198, 74512, 93140, 130396, 144367, 162995, 186280, 260792, 288734, 325990, 372560, 521584, 577468, 651980, 721835, 1010569, 1154936, 1303960, 1443670, 2021138, 2309872, 2607920, 2887340, 4042276, 5052845, 5774680, 8084552, 10105690, 11549360, 16169104, 20211380, 40422760, 80845520]

約数ペア:

[(1, 80845520), (2, 40422760), (4, 20211380), (5, 16169104), (7, 11549360), (8, 10105690), (10, 8084552), (14, 5774680), (16, 5052845), (20, 4042276), (28, 2887340), (31, 2607920), (35, 2309872), (40, 2021138), (56, 1443670), (62, 1303960), (70, 1154936), (80, 1010569), (112, 721835), (124, 651980), (140, 577468), (155, 521584), (217, 372560), (248, 325990), (280, 288734), (310, 260792), (434, 186280), (496, 162995), (560, 144367), (620, 130396), (868, 93140), (1085, 74512), (1240, 65198), (1736, 46570), (2170, 37256), (2480, 32599), (3472, 23285), (4340, 18628), (4657, 17360), (8680, 9314)]