68340420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1213}}^1$

素因数の和:1541

約数の個数: 72

約数和(自身を含む): 208133016

約数和(自身を除く): 139792596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 313, 626, 939, 1213, 1252, 1565, 1878, 2426, 2817, 3130, 3639, 3756, 4695, 4852, 5634, 6065, 6260, 7278, 9390, 10917, 11268, 12130, 14085, 14556, 18195, 18780, 21834, 24260, 28170, 36390, 43668, 54585, 56340, 72780, 109170, 218340, 379669, 759338, 1139007, 1518676, 1898345, 2278014, 3417021, 3796690, 4556028, 5695035, 6834042, 7593380, 11390070, 13668084, 17085105, 22780140, 34170210, 68340420]

約数ペア:

[(1, 68340420), (2, 34170210), (3, 22780140), (4, 17085105), (5, 13668084), (6, 11390070), (9, 7593380), (10, 6834042), (12, 5695035), (15, 4556028), (18, 3796690), (20, 3417021), (30, 2278014), (36, 1898345), (45, 1518676), (60, 1139007), (90, 759338), (180, 379669), (313, 218340), (626, 109170), (939, 72780), (1213, 56340), (1252, 54585), (1565, 43668), (1878, 36390), (2426, 28170), (2817, 24260), (3130, 21834), (3639, 18780), (3756, 18195), (4695, 14556), (4852, 14085), (5634, 12130), (6065, 11268), (6260, 10917), (7278, 9390)]