18943980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{28703}}^1$

素因数の和:28726

約数の個数: 48

約数和(自身を含む): 57867264

約数和(自身を除く): 38923284

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 28703, 57406, 86109, 114812, 143515, 172218, 287030, 315733, 344436, 430545, 574060, 631466, 861090, 947199, 1262932, 1578665, 1722180, 1894398, 3157330, 3788796, 4735995, 6314660, 9471990, 18943980]

約数ペア:

[(1, 18943980), (2, 9471990), (3, 6314660), (4, 4735995), (5, 3788796), (6, 3157330), (10, 1894398), (11, 1722180), (12, 1578665), (15, 1262932), (20, 947199), (22, 861090), (30, 631466), (33, 574060), (44, 430545), (55, 344436), (60, 315733), (66, 287030), (110, 172218), (132, 143515), (165, 114812), (220, 86109), (330, 57406), (660, 28703)]