7218440

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1597}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 16395480

約数和(自身を除く): 9177040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 1597, 2260, 3194, 4520, 6388, 7985, 12776, 15970, 31940, 63880, 180461, 360922, 721844, 902305, 1443688, 1804610, 3609220, 7218440]

約数ペア:

[(1, 7218440), (2, 3609220), (4, 1804610), (5, 1443688), (8, 902305), (10, 721844), (20, 360922), (40, 180461), (113, 63880), (226, 31940), (452, 15970), (565, 12776), (904, 7985), (1130, 6388), (1597, 4520), (2260, 3194)]