260820140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{4363}}^1$

素因数の和:4447

約数の個数: 72

約数和(自身を含む): 647739792

約数和(自身を除く): 386919652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 140, 196, 244, 245, 305, 427, 490, 610, 854, 980, 1220, 1708, 2135, 2989, 4270, 4363, 5978, 8540, 8726, 11956, 14945, 17452, 21815, 29890, 30541, 43630, 59780, 61082, 87260, 122164, 152705, 213787, 266143, 305410, 427574, 532286, 610820, 855148, 1064572, 1068935, 1330715, 1863001, 2137870, 2661430, 3726002, 4275740, 5322860, 7452004, 9315005, 13041007, 18630010, 26082014, 37260020, 52164028, 65205035, 130410070, 260820140]

約数ペア:

[(1, 260820140), (2, 130410070), (4, 65205035), (5, 52164028), (7, 37260020), (10, 26082014), (14, 18630010), (20, 13041007), (28, 9315005), (35, 7452004), (49, 5322860), (61, 4275740), (70, 3726002), (98, 2661430), (122, 2137870), (140, 1863001), (196, 1330715), (244, 1068935), (245, 1064572), (305, 855148), (427, 610820), (490, 532286), (610, 427574), (854, 305410), (980, 266143), (1220, 213787), (1708, 152705), (2135, 122164), (2989, 87260), (4270, 61082), (4363, 59780), (5978, 43630), (8540, 30541), (8726, 29890), (11956, 21815), (14945, 17452)]