28459120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8273}}^1$

素因数の和:8329

約数の個数: 40

約数和(自身を含む): 67714416

約数和(自身を除く): 39255296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8273, 16546, 33092, 41365, 66184, 82730, 132368, 165460, 330920, 355739, 661840, 711478, 1422956, 1778695, 2845912, 3557390, 5691824, 7114780, 14229560, 28459120]

約数ペア:

[(1, 28459120), (2, 14229560), (4, 7114780), (5, 5691824), (8, 3557390), (10, 2845912), (16, 1778695), (20, 1422956), (40, 711478), (43, 661840), (80, 355739), (86, 330920), (172, 165460), (215, 132368), (344, 82730), (430, 66184), (688, 41365), (860, 33092), (1720, 16546), (3440, 8273)]