128895760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{683}}^1$

素因数の和:1040

約数の個数: 80

約数和(自身を含む): 344013696

約数和(自身を除く): 215117936

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 337, 560, 674, 683, 1348, 1366, 1685, 2359, 2696, 2732, 3370, 3415, 4718, 4781, 5392, 5464, 6740, 6830, 9436, 9562, 10928, 11795, 13480, 13660, 18872, 19124, 23590, 23905, 26960, 27320, 37744, 38248, 47180, 47810, 54640, 76496, 94360, 95620, 188720, 191240, 230171, 382480, 460342, 920684, 1150855, 1611197, 1841368, 2301710, 3222394, 3682736, 4603420, 6444788, 8055985, 9206840, 12889576, 16111970, 18413680, 25779152, 32223940, 64447880, 128895760]

約数ペア:

[(1, 128895760), (2, 64447880), (4, 32223940), (5, 25779152), (7, 18413680), (8, 16111970), (10, 12889576), (14, 9206840), (16, 8055985), (20, 6444788), (28, 4603420), (35, 3682736), (40, 3222394), (56, 2301710), (70, 1841368), (80, 1611197), (112, 1150855), (140, 920684), (280, 460342), (337, 382480), (560, 230171), (674, 191240), (683, 188720), (1348, 95620), (1366, 94360), (1685, 76496), (2359, 54640), (2696, 47810), (2732, 47180), (3370, 38248), (3415, 37744), (4718, 27320), (4781, 26960), (5392, 23905), (5464, 23590), (6740, 19124), (6830, 18872), (9436, 13660), (9562, 13480), (10928, 11795)]