397173680

素因数分解:

$2^4\times 5^1\times {\mathrm{277}}^1\times {\mathrm{17923}}^1$

素因数の和:18213

約数の個数: 40

約数和(自身を含む): 926814192

約数和(自身を除く): 529640512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277, 554, 1108, 1385, 2216, 2770, 4432, 5540, 11080, 17923, 22160, 35846, 71692, 89615, 143384, 179230, 286768, 358460, 716920, 1433840, 4964671, 9929342, 19858684, 24823355, 39717368, 49646710, 79434736, 99293420, 198586840, 397173680]

約数ペア:

[(1, 397173680), (2, 198586840), (4, 99293420), (5, 79434736), (8, 49646710), (10, 39717368), (16, 24823355), (20, 19858684), (40, 9929342), (80, 4964671), (277, 1433840), (554, 716920), (1108, 358460), (1385, 286768), (2216, 179230), (2770, 143384), (4432, 89615), (5540, 71692), (11080, 35846), (17923, 22160)]