28495520

素因数分解:

$2^5\times 5^1\times {\mathrm{313}}^1\times {\mathrm{569}}^1$

素因数の和:897

約数の個数: 48

約数和(自身を含む): 67654440

約数和(自身を除く): 39158920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 313, 569, 626, 1138, 1252, 1565, 2276, 2504, 2845, 3130, 4552, 5008, 5690, 6260, 9104, 10016, 11380, 12520, 18208, 22760, 25040, 45520, 50080, 91040, 178097, 356194, 712388, 890485, 1424776, 1780970, 2849552, 3561940, 5699104, 7123880, 14247760, 28495520]

約数ペア:

[(1, 28495520), (2, 14247760), (4, 7123880), (5, 5699104), (8, 3561940), (10, 2849552), (16, 1780970), (20, 1424776), (32, 890485), (40, 712388), (80, 356194), (160, 178097), (313, 91040), (569, 50080), (626, 45520), (1138, 25040), (1252, 22760), (1565, 18208), (2276, 12520), (2504, 11380), (2845, 10016), (3130, 9104), (4552, 6260), (5008, 5690)]