209605880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:202

約数の個数: 128

約数和(自身を含む): 539688960

約数和(自身を除く): 330083080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 121, 124, 127, 155, 220, 242, 248, 254, 310, 341, 440, 484, 508, 605, 620, 635, 682, 968, 1016, 1210, 1240, 1270, 1331, 1364, 1397, 1705, 2420, 2540, 2662, 2728, 2794, 3410, 3751, 3937, 4840, 5080, 5324, 5588, 6655, 6820, 6985, 7502, 7874, 10648, 11176, 13310, 13640, 13970, 15004, 15367, 15748, 18755, 19685, 26620, 27940, 30008, 30734, 31496, 37510, 39370, 41261, 43307, 53240, 55880, 61468, 75020, 76835, 78740, 82522, 86614, 122936, 150040, 153670, 157480, 165044, 169037, 173228, 206305, 216535, 307340, 330088, 338074, 346456, 412610, 433070, 476377, 614680, 676148, 825220, 845185, 866140, 952754, 1352296, 1650440, 1690370, 1732280, 1905508, 2381885, 3380740, 3811016, 4763770, 5240147, 6761480, 9527540, 10480294, 19055080, 20960588, 26200735, 41921176, 52401470, 104802940, 209605880]

約数ペア:

[(1, 209605880), (2, 104802940), (4, 52401470), (5, 41921176), (8, 26200735), (10, 20960588), (11, 19055080), (20, 10480294), (22, 9527540), (31, 6761480), (40, 5240147), (44, 4763770), (55, 3811016), (62, 3380740), (88, 2381885), (110, 1905508), (121, 1732280), (124, 1690370), (127, 1650440), (155, 1352296), (220, 952754), (242, 866140), (248, 845185), (254, 825220), (310, 676148), (341, 614680), (440, 476377), (484, 433070), (508, 412610), (605, 346456), (620, 338074), (635, 330088), (682, 307340), (968, 216535), (1016, 206305), (1210, 173228), (1240, 169037), (1270, 165044), (1331, 157480), (1364, 153670), (1397, 150040), (1705, 122936), (2420, 86614), (2540, 82522), (2662, 78740), (2728, 76835), (2794, 75020), (3410, 61468), (3751, 55880), (3937, 53240), (4840, 43307), (5080, 41261), (5324, 39370), (5588, 37510), (6655, 31496), (6820, 30734), (6985, 30008), (7502, 27940), (7874, 26620), (10648, 19685), (11176, 18755), (13310, 15748), (13640, 15367), (13970, 15004)]