13181980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13451}}^1$

素因数の和:13474

約数の個数: 36

約数和(自身を含む): 32204088

約数和(自身を除く): 19022108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 13451, 26902, 53804, 67255, 94157, 134510, 188314, 269020, 376628, 470785, 659099, 941570, 1318198, 1883140, 2636396, 3295495, 6590990, 13181980]

約数ペア:

[(1, 13181980), (2, 6590990), (4, 3295495), (5, 2636396), (7, 1883140), (10, 1318198), (14, 941570), (20, 659099), (28, 470785), (35, 376628), (49, 269020), (70, 188314), (98, 134510), (140, 94157), (196, 67255), (245, 53804), (490, 26902), (980, 13451)]