80709050

素因数分解:

$2^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:431

約数の個数: 48

約数和(自身を含む): 154677600

約数和(自身を除く): 73968550

約数列:

[1, 2, 5, 10, 25, 50, 59, 109, 118, 218, 251, 295, 502, 545, 590, 1090, 1255, 1475, 2510, 2725, 2950, 5450, 6275, 6431, 12550, 12862, 14809, 27359, 29618, 32155, 54718, 64310, 74045, 136795, 148090, 160775, 273590, 321550, 370225, 683975, 740450, 1367950, 1614181, 3228362, 8070905, 16141810, 40354525, 80709050]

約数ペア:

[(1, 80709050), (2, 40354525), (5, 16141810), (10, 8070905), (25, 3228362), (50, 1614181), (59, 1367950), (109, 740450), (118, 683975), (218, 370225), (251, 321550), (295, 273590), (502, 160775), (545, 148090), (590, 136795), (1090, 74045), (1255, 64310), (1475, 54718), (2510, 32155), (2725, 29618), (2950, 27359), (5450, 14809), (6275, 12862), (6431, 12550)]