39514220

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 85276800

約数和(自身を除く): 45762580

約数列:

[1, 2, 4, 5, 10, 20, 79, 89, 158, 178, 281, 316, 356, 395, 445, 562, 790, 890, 1124, 1405, 1580, 1780, 2810, 5620, 7031, 14062, 22199, 25009, 28124, 35155, 44398, 50018, 70310, 88796, 100036, 110995, 125045, 140620, 221990, 250090, 443980, 500180, 1975711, 3951422, 7902844, 9878555, 19757110, 39514220]

約数ペア:

[(1, 39514220), (2, 19757110), (4, 9878555), (5, 7902844), (10, 3951422), (20, 1975711), (79, 500180), (89, 443980), (158, 250090), (178, 221990), (281, 140620), (316, 125045), (356, 110995), (395, 100036), (445, 88796), (562, 70310), (790, 50018), (890, 44398), (1124, 35155), (1405, 28124), (1580, 25009), (1780, 22199), (2810, 14062), (5620, 7031)]