25778920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{9619}}^1$

素因数の和:9697

約数の個数: 32

約数和(自身を含む): 58874400

約数和(自身を除く): 33095480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 9619, 19238, 38476, 48095, 76952, 96190, 192380, 384760, 644473, 1288946, 2577892, 3222365, 5155784, 6444730, 12889460, 25778920]

約数ペア:

[(1, 25778920), (2, 12889460), (4, 6444730), (5, 5155784), (8, 3222365), (10, 2577892), (20, 1288946), (40, 644473), (67, 384760), (134, 192380), (268, 96190), (335, 76952), (536, 48095), (670, 38476), (1340, 19238), (2680, 9619)]