20587340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{401}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 46194624

約数和(自身を除く): 25607284

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 151, 170, 302, 340, 401, 604, 755, 802, 1510, 1604, 2005, 2567, 3020, 4010, 5134, 6817, 8020, 10268, 12835, 13634, 25670, 27268, 34085, 51340, 60551, 68170, 121102, 136340, 242204, 302755, 605510, 1029367, 1211020, 2058734, 4117468, 5146835, 10293670, 20587340]

約数ペア:

[(1, 20587340), (2, 10293670), (4, 5146835), (5, 4117468), (10, 2058734), (17, 1211020), (20, 1029367), (34, 605510), (68, 302755), (85, 242204), (151, 136340), (170, 121102), (302, 68170), (340, 60551), (401, 51340), (604, 34085), (755, 27268), (802, 25670), (1510, 13634), (1604, 12835), (2005, 10268), (2567, 8020), (3020, 6817), (4010, 5134)]