378770920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{860843}}^1$

素因数の和:860865

約数の個数: 32

約数和(自身を含む): 929711520

約数和(自身を除く): 550940600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 860843, 1721686, 3443372, 4304215, 6886744, 8608430, 9469273, 17216860, 18938546, 34433720, 37877092, 47346365, 75754184, 94692730, 189385460, 378770920]

約数ペア:

[(1, 378770920), (2, 189385460), (4, 94692730), (5, 75754184), (8, 47346365), (10, 37877092), (11, 34433720), (20, 18938546), (22, 17216860), (40, 9469273), (44, 8608430), (55, 6886744), (88, 4304215), (110, 3443372), (220, 1721686), (440, 860843)]