28955120

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{3203}}^1$

素因数の和:3329

約数の個数: 40

約数和(自身を含む): 67937616

約数和(自身を除く): 38982496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2260, 3203, 4520, 6406, 9040, 12812, 16015, 25624, 32030, 51248, 64060, 128120, 256240, 361939, 723878, 1447756, 1809695, 2895512, 3619390, 5791024, 7238780, 14477560, 28955120]

約数ペア:

[(1, 28955120), (2, 14477560), (4, 7238780), (5, 5791024), (8, 3619390), (10, 2895512), (16, 1809695), (20, 1447756), (40, 723878), (80, 361939), (113, 256240), (226, 128120), (452, 64060), (565, 51248), (904, 32030), (1130, 25624), (1808, 16015), (2260, 12812), (3203, 9040), (4520, 6406)]