28431340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6551}}^1$

素因数の和:6598

約数の個数: 48

約数和(自身を含む): 70447104

約数和(自身を除く): 42015764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 6551, 13102, 26204, 32755, 45857, 65510, 91714, 131020, 183428, 203081, 229285, 406162, 458570, 812324, 917140, 1015405, 1421567, 2030810, 2843134, 4061620, 5686268, 7107835, 14215670, 28431340]

約数ペア:

[(1, 28431340), (2, 14215670), (4, 7107835), (5, 5686268), (7, 4061620), (10, 2843134), (14, 2030810), (20, 1421567), (28, 1015405), (31, 917140), (35, 812324), (62, 458570), (70, 406162), (124, 229285), (140, 203081), (155, 183428), (217, 131020), (310, 91714), (434, 65510), (620, 45857), (868, 32755), (1085, 26204), (2170, 13102), (4340, 6551)]