128147740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3041}}^1$

素因数の和:3107

約数の個数: 72

約数和(自身を含む): 320432112

約数和(自身を除く): 192284372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1505, 2107, 3010, 3041, 4214, 6020, 6082, 8428, 10535, 12164, 15205, 21070, 21287, 30410, 42140, 42574, 60820, 85148, 106435, 130763, 149009, 212870, 261526, 298018, 425740, 523052, 596036, 653815, 745045, 915341, 1307630, 1490090, 1830682, 2615260, 2980180, 3661364, 4576705, 6407387, 9153410, 12814774, 18306820, 25629548, 32036935, 64073870, 128147740]

約数ペア:

[(1, 128147740), (2, 64073870), (4, 32036935), (5, 25629548), (7, 18306820), (10, 12814774), (14, 9153410), (20, 6407387), (28, 4576705), (35, 3661364), (43, 2980180), (49, 2615260), (70, 1830682), (86, 1490090), (98, 1307630), (140, 915341), (172, 745045), (196, 653815), (215, 596036), (245, 523052), (301, 425740), (430, 298018), (490, 261526), (602, 212870), (860, 149009), (980, 130763), (1204, 106435), (1505, 85148), (2107, 60820), (3010, 42574), (3041, 42140), (4214, 30410), (6020, 21287), (6082, 21070), (8428, 15205), (10535, 12164)]