28171980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{156511}}^1$

素因数の和:156526

約数の個数: 36

約数和(自身を含む): 85455552

約数和(自身を除く): 57283572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 156511, 313022, 469533, 626044, 782555, 939066, 1408599, 1565110, 1878132, 2347665, 2817198, 3130220, 4695330, 5634396, 7042995, 9390660, 14085990, 28171980]

約数ペア:

[(1, 28171980), (2, 14085990), (3, 9390660), (4, 7042995), (5, 5634396), (6, 4695330), (9, 3130220), (10, 2817198), (12, 2347665), (15, 1878132), (18, 1565110), (20, 1408599), (30, 939066), (36, 782555), (45, 626044), (60, 469533), (90, 313022), (180, 156511)]