388962820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{1423}}^1$

素因数の和:1684

約数の個数: 48

約数和(自身を含む): 832527360

約数和(自身を除く): 443564540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 173, 316, 346, 395, 692, 790, 865, 1423, 1580, 1730, 2846, 3460, 5692, 7115, 13667, 14230, 27334, 28460, 54668, 68335, 112417, 136670, 224834, 246179, 273340, 449668, 492358, 562085, 984716, 1124170, 1230895, 2248340, 2461790, 4923580, 19448141, 38896282, 77792564, 97240705, 194481410, 388962820]

約数ペア:

[(1, 388962820), (2, 194481410), (4, 97240705), (5, 77792564), (10, 38896282), (20, 19448141), (79, 4923580), (158, 2461790), (173, 2248340), (316, 1230895), (346, 1124170), (395, 984716), (692, 562085), (790, 492358), (865, 449668), (1423, 273340), (1580, 246179), (1730, 224834), (2846, 136670), (3460, 112417), (5692, 68335), (7115, 54668), (13667, 28460), (14230, 27334)]