2811250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1$

素因数の和:208

約数の個数: 40

約数和(自身を含む): 5707548

約数和(自身を除く): 2896298

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 173, 250, 325, 346, 625, 650, 865, 1250, 1625, 1730, 2249, 3250, 4325, 4498, 8125, 8650, 11245, 16250, 21625, 22490, 43250, 56225, 108125, 112450, 216250, 281125, 562250, 1405625, 2811250]

約数ペア:

[(1, 2811250), (2, 1405625), (5, 562250), (10, 281125), (13, 216250), (25, 112450), (26, 108125), (50, 56225), (65, 43250), (125, 22490), (130, 21625), (173, 16250), (250, 11245), (325, 8650), (346, 8125), (625, 4498), (650, 4325), (865, 3250), (1250, 2249), (1625, 1730)]