8684720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:234

約数の個数: 80

約数和(自身を含む): 22498560

約数和(自身を除く): 13813840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 139, 142, 176, 220, 278, 284, 355, 440, 556, 568, 695, 710, 781, 880, 1112, 1136, 1390, 1420, 1529, 1562, 2224, 2780, 2840, 3058, 3124, 3905, 5560, 5680, 6116, 6248, 7645, 7810, 9869, 11120, 12232, 12496, 15290, 15620, 19738, 24464, 30580, 31240, 39476, 49345, 61160, 62480, 78952, 98690, 108559, 122320, 157904, 197380, 217118, 394760, 434236, 542795, 789520, 868472, 1085590, 1736944, 2171180, 4342360, 8684720]

約数ペア:

[(1, 8684720), (2, 4342360), (4, 2171180), (5, 1736944), (8, 1085590), (10, 868472), (11, 789520), (16, 542795), (20, 434236), (22, 394760), (40, 217118), (44, 197380), (55, 157904), (71, 122320), (80, 108559), (88, 98690), (110, 78952), (139, 62480), (142, 61160), (176, 49345), (220, 39476), (278, 31240), (284, 30580), (355, 24464), (440, 19738), (556, 15620), (568, 15290), (695, 12496), (710, 12232), (781, 11120), (880, 9869), (1112, 7810), (1136, 7645), (1390, 6248), (1420, 6116), (1529, 5680), (1562, 5560), (2224, 3905), (2780, 3124), (2840, 3058)]