51879760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15817}}^1$

素因数の和:15871

約数の個数: 40

約数和(自身を含む): 123570216

約数和(自身を除く): 71690456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 15817, 31634, 63268, 79085, 126536, 158170, 253072, 316340, 632680, 648497, 1265360, 1296994, 2593988, 3242485, 5187976, 6484970, 10375952, 12969940, 25939880, 51879760]

約数ペア:

[(1, 51879760), (2, 25939880), (4, 12969940), (5, 10375952), (8, 6484970), (10, 5187976), (16, 3242485), (20, 2593988), (40, 1296994), (41, 1265360), (80, 648497), (82, 632680), (164, 316340), (205, 253072), (328, 158170), (410, 126536), (656, 79085), (820, 63268), (1640, 31634), (3280, 15817)]