19401505

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 26265600

約数和(自身を除く): 6864095

約数列:

[1, 5, 17, 31, 37, 85, 155, 185, 199, 527, 629, 995, 1147, 2635, 3145, 3383, 5735, 6169, 7363, 16915, 19499, 30845, 36815, 97495, 104873, 125171, 228253, 524365, 625855, 1141265, 3880301, 19401505]

約数ペア:

[(1, 19401505), (5, 3880301), (17, 1141265), (31, 625855), (37, 524365), (85, 228253), (155, 125171), (185, 104873), (199, 97495), (527, 36815), (629, 30845), (995, 19499), (1147, 16915), (2635, 7363), (3145, 6169), (3383, 5735)]