4947140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 11491200

約数和(自身を除く): 6544060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 199, 220, 226, 398, 452, 565, 796, 995, 1130, 1243, 1990, 2189, 2260, 2486, 3980, 4378, 4972, 6215, 8756, 10945, 12430, 21890, 22487, 24860, 43780, 44974, 89948, 112435, 224870, 247357, 449740, 494714, 989428, 1236785, 2473570, 4947140]

約数ペア:

[(1, 4947140), (2, 2473570), (4, 1236785), (5, 989428), (10, 494714), (11, 449740), (20, 247357), (22, 224870), (44, 112435), (55, 89948), (110, 44974), (113, 43780), (199, 24860), (220, 22487), (226, 21890), (398, 12430), (452, 10945), (565, 8756), (796, 6215), (995, 4972), (1130, 4378), (1243, 3980), (1990, 2486), (2189, 2260)]