15421720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{22679}}^1$

素因数の和:22707

約数の個数: 32

約数和(自身を含む): 36741600

約数和(自身を除く): 21319880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 22679, 45358, 90716, 113395, 181432, 226790, 385543, 453580, 771086, 907160, 1542172, 1927715, 3084344, 3855430, 7710860, 15421720]

約数ペア:

[(1, 15421720), (2, 7710860), (4, 3855430), (5, 3084344), (8, 1927715), (10, 1542172), (17, 907160), (20, 771086), (34, 453580), (40, 385543), (68, 226790), (85, 181432), (136, 113395), (170, 90716), (340, 45358), (680, 22679)]