20479592

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 25969048

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 47, 56, 62, 94, 124, 188, 217, 248, 251, 329, 376, 434, 502, 658, 868, 1004, 1316, 1457, 1736, 1757, 2008, 2632, 2914, 3514, 5828, 7028, 7781, 10199, 11656, 11797, 14056, 15562, 20398, 23594, 31124, 40796, 47188, 54467, 62248, 81592, 82579, 94376, 108934, 165158, 217868, 330316, 365707, 435736, 660632, 731414, 1462828, 2559949, 2925656, 5119898, 10239796, 20479592]

約数ペア:

[(1, 20479592), (2, 10239796), (4, 5119898), (7, 2925656), (8, 2559949), (14, 1462828), (28, 731414), (31, 660632), (47, 435736), (56, 365707), (62, 330316), (94, 217868), (124, 165158), (188, 108934), (217, 94376), (248, 82579), (251, 81592), (329, 62248), (376, 54467), (434, 47188), (502, 40796), (658, 31124), (868, 23594), (1004, 20398), (1316, 15562), (1457, 14056), (1736, 11797), (1757, 11656), (2008, 10199), (2632, 7781), (2914, 7028), (3514, 5828)]