201127540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 452216520

約数和(自身を除く): 251088980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 313, 356, 361, 380, 445, 626, 722, 890, 1252, 1444, 1565, 1691, 1780, 1805, 3130, 3382, 3610, 5947, 6260, 6764, 7220, 8455, 11894, 16910, 23788, 27857, 29735, 32129, 33820, 55714, 59470, 64258, 111428, 112993, 118940, 128516, 139285, 160645, 225986, 278570, 321290, 451972, 529283, 557140, 564965, 642580, 1058566, 1129930, 2117132, 2259860, 2646415, 5292830, 10056377, 10585660, 20112754, 40225508, 50281885, 100563770, 201127540]

約数ペア:

[(1, 201127540), (2, 100563770), (4, 50281885), (5, 40225508), (10, 20112754), (19, 10585660), (20, 10056377), (38, 5292830), (76, 2646415), (89, 2259860), (95, 2117132), (178, 1129930), (190, 1058566), (313, 642580), (356, 564965), (361, 557140), (380, 529283), (445, 451972), (626, 321290), (722, 278570), (890, 225986), (1252, 160645), (1444, 139285), (1565, 128516), (1691, 118940), (1780, 112993), (1805, 111428), (3130, 64258), (3382, 59470), (3610, 55714), (5947, 33820), (6260, 32129), (6764, 29735), (7220, 27857), (8455, 23788), (11894, 16910)]