20492290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3217}}^1$

素因数の和:3251

約数の個数: 48

約数和(自身を含む): 46223352

約数和(自身を除く): 25731062

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 3185, 3217, 6370, 6434, 16085, 22519, 32170, 41821, 45038, 83642, 112595, 157633, 209105, 225190, 292747, 315266, 418210, 585494, 788165, 1463735, 1576330, 2049229, 2927470, 4098458, 10246145, 20492290]

約数ペア:

[(1, 20492290), (2, 10246145), (5, 4098458), (7, 2927470), (10, 2049229), (13, 1576330), (14, 1463735), (26, 788165), (35, 585494), (49, 418210), (65, 315266), (70, 292747), (91, 225190), (98, 209105), (130, 157633), (182, 112595), (245, 83642), (455, 45038), (490, 41821), (637, 32170), (910, 22519), (1274, 16085), (3185, 6434), (3217, 6370)]