127581860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21193}}^1$

素因数の和:21252

約数の個数: 48

約数和(自身を含む): 313332096

約数和(自身を除く): 185750236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 6020, 21193, 42386, 84772, 105965, 148351, 211930, 296702, 423860, 593404, 741755, 911299, 1483510, 1822598, 2967020, 3645196, 4556495, 6379093, 9112990, 12758186, 18225980, 25516372, 31895465, 63790930, 127581860]

約数ペア:

[(1, 127581860), (2, 63790930), (4, 31895465), (5, 25516372), (7, 18225980), (10, 12758186), (14, 9112990), (20, 6379093), (28, 4556495), (35, 3645196), (43, 2967020), (70, 1822598), (86, 1483510), (140, 911299), (172, 741755), (215, 593404), (301, 423860), (430, 296702), (602, 211930), (860, 148351), (1204, 105965), (1505, 84772), (3010, 42386), (6020, 21193)]