121720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1$

素因数の和:207

約数の個数: 32

約数和(自身を含む): 291600

約数和(自身を除く): 169880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 179, 340, 358, 680, 716, 895, 1432, 1790, 3043, 3580, 6086, 7160, 12172, 15215, 24344, 30430, 60860, 121720]

約数ペア:

[(1, 121720), (2, 60860), (4, 30430), (5, 24344), (8, 15215), (10, 12172), (17, 7160), (20, 6086), (34, 3580), (40, 3043), (68, 1790), (85, 1432), (136, 895), (170, 716), (179, 680), (340, 358)]