66945760

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{8539}}^1$

素因数の和:8568

約数の個数: 72

約数和(自身を含む): 184002840

約数和(自身を除く): 117057080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 8539, 17078, 34156, 42695, 59773, 68312, 85390, 119546, 136624, 170780, 239092, 273248, 298865, 341560, 418411, 478184, 597730, 683120, 836822, 956368, 1195460, 1366240, 1673644, 1912736, 2092055, 2390920, 3347288, 4184110, 4781840, 6694576, 8368220, 9563680, 13389152, 16736440, 33472880, 66945760]

約数ペア:

[(1, 66945760), (2, 33472880), (4, 16736440), (5, 13389152), (7, 9563680), (8, 8368220), (10, 6694576), (14, 4781840), (16, 4184110), (20, 3347288), (28, 2390920), (32, 2092055), (35, 1912736), (40, 1673644), (49, 1366240), (56, 1195460), (70, 956368), (80, 836822), (98, 683120), (112, 597730), (140, 478184), (160, 418411), (196, 341560), (224, 298865), (245, 273248), (280, 239092), (392, 170780), (490, 136624), (560, 119546), (784, 85390), (980, 68312), (1120, 59773), (1568, 42695), (1960, 34156), (3920, 17078), (7840, 8539)]