28407176

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 63866880

約数和(自身を除く): 35459704

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 47, 56, 86, 94, 172, 188, 251, 301, 329, 344, 376, 502, 602, 658, 1004, 1204, 1316, 1757, 2008, 2021, 2408, 2632, 3514, 4042, 7028, 8084, 10793, 11797, 14056, 14147, 16168, 21586, 23594, 28294, 43172, 47188, 56588, 75551, 82579, 86344, 94376, 113176, 151102, 165158, 302204, 330316, 507271, 604408, 660632, 1014542, 2029084, 3550897, 4058168, 7101794, 14203588, 28407176]

約数ペア:

[(1, 28407176), (2, 14203588), (4, 7101794), (7, 4058168), (8, 3550897), (14, 2029084), (28, 1014542), (43, 660632), (47, 604408), (56, 507271), (86, 330316), (94, 302204), (172, 165158), (188, 151102), (251, 113176), (301, 94376), (329, 86344), (344, 82579), (376, 75551), (502, 56588), (602, 47188), (658, 43172), (1004, 28294), (1204, 23594), (1316, 21586), (1757, 16168), (2008, 14147), (2021, 14056), (2408, 11797), (2632, 10793), (3514, 8084), (4042, 7028)]