8903920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6547}}^1$

素因数の和:6577

約数の個数: 40

約数和(自身を含む): 21922704

約数和(自身を除く): 13018784

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 6547, 13094, 26188, 32735, 52376, 65470, 104752, 111299, 130940, 222598, 261880, 445196, 523760, 556495, 890392, 1112990, 1780784, 2225980, 4451960, 8903920]

約数ペア:

[(1, 8903920), (2, 4451960), (4, 2225980), (5, 1780784), (8, 1112990), (10, 890392), (16, 556495), (17, 523760), (20, 445196), (34, 261880), (40, 222598), (68, 130940), (80, 111299), (85, 104752), (136, 65470), (170, 52376), (272, 32735), (340, 26188), (680, 13094), (1360, 6547)]