67721990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 144460800

約数和(自身を除く): 76738810

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 70, 86, 149, 151, 215, 298, 301, 302, 430, 602, 745, 755, 1043, 1057, 1490, 1505, 1510, 2086, 2114, 3010, 5215, 5285, 6407, 6493, 10430, 10570, 12814, 12986, 22499, 32035, 32465, 44849, 44998, 45451, 64070, 64930, 89698, 90902, 112495, 157493, 224245, 224990, 227255, 314986, 448490, 454510, 787465, 967457, 1574930, 1934914, 4837285, 6772199, 9674570, 13544398, 33860995, 67721990]

約数ペア:

[(1, 67721990), (2, 33860995), (5, 13544398), (7, 9674570), (10, 6772199), (14, 4837285), (35, 1934914), (43, 1574930), (70, 967457), (86, 787465), (149, 454510), (151, 448490), (215, 314986), (298, 227255), (301, 224990), (302, 224245), (430, 157493), (602, 112495), (745, 90902), (755, 89698), (1043, 64930), (1057, 64070), (1490, 45451), (1505, 44998), (1510, 44849), (2086, 32465), (2114, 32035), (3010, 22499), (5215, 12986), (5285, 12814), (6407, 10570), (6493, 10430)]