80937040

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7723}}^1$

素因数の和:7867

約数の個数: 40

約数和(自身を含む): 189639648

約数和(自身を除く): 108702608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 7723, 10480, 15446, 30892, 38615, 61784, 77230, 123568, 154460, 308920, 617840, 1011713, 2023426, 4046852, 5058565, 8093704, 10117130, 16187408, 20234260, 40468520, 80937040]

約数ペア:

[(1, 80937040), (2, 40468520), (4, 20234260), (5, 16187408), (8, 10117130), (10, 8093704), (16, 5058565), (20, 4046852), (40, 2023426), (80, 1011713), (131, 617840), (262, 308920), (524, 154460), (655, 123568), (1048, 77230), (1310, 61784), (2096, 38615), (2620, 30892), (5240, 15446), (7723, 10480)]