988240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1123}}^1$

素因数の和:1147

約数の個数: 40

約数和(自身を含む): 2508768

約数和(自身を除く): 1520528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1123, 2246, 4492, 5615, 8984, 11230, 12353, 17968, 22460, 24706, 44920, 49412, 61765, 89840, 98824, 123530, 197648, 247060, 494120, 988240]

約数ペア:

[(1, 988240), (2, 494120), (4, 247060), (5, 197648), (8, 123530), (10, 98824), (11, 89840), (16, 61765), (20, 49412), (22, 44920), (40, 24706), (44, 22460), (55, 17968), (80, 12353), (88, 11230), (110, 8984), (176, 5615), (220, 4492), (440, 2246), (880, 1123)]