181440140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{26449}}^1$

素因数の和:26479

約数の個数: 48

約数和(自身を含む): 444360000

約数和(自身を除く): 262919860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 26449, 52898, 105796, 132245, 185143, 264490, 370286, 528980, 740572, 925715, 1296001, 1851430, 2592002, 3702860, 5184004, 6480005, 9072007, 12960010, 18144014, 25920020, 36288028, 45360035, 90720070, 181440140]

約数ペア:

[(1, 181440140), (2, 90720070), (4, 45360035), (5, 36288028), (7, 25920020), (10, 18144014), (14, 12960010), (20, 9072007), (28, 6480005), (35, 5184004), (49, 3702860), (70, 2592002), (98, 1851430), (140, 1296001), (196, 925715), (245, 740572), (343, 528980), (490, 370286), (686, 264490), (980, 185143), (1372, 132245), (1715, 105796), (3430, 52898), (6860, 26449)]