130389980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{133051}}^1$

素因数の和:133074

約数の個数: 36

約数和(自身を含む): 318526488

約数和(自身を除く): 188136508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 133051, 266102, 532204, 665255, 931357, 1330510, 1862714, 2661020, 3725428, 4656785, 6519499, 9313570, 13038998, 18627140, 26077996, 32597495, 65194990, 130389980]

約数ペア:

[(1, 130389980), (2, 65194990), (4, 32597495), (5, 26077996), (7, 18627140), (10, 13038998), (14, 9313570), (20, 6519499), (28, 4656785), (35, 3725428), (49, 2661020), (70, 1862714), (98, 1330510), (140, 931357), (196, 665255), (245, 532204), (490, 266102), (980, 133051)]