131969920

素因数分解:

$2^7\times 5^1\times {\mathrm{206203}}^1$

素因数の和:206222

約数の個数: 32

約数和(自身を含む): 315492120

約数和(自身を除く): 183522200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 206203, 412406, 824812, 1031015, 1649624, 2062030, 3299248, 4124060, 6598496, 8248120, 13196992, 16496240, 26393984, 32992480, 65984960, 131969920]

約数ペア:

[(1, 131969920), (2, 65984960), (4, 32992480), (5, 26393984), (8, 16496240), (10, 13196992), (16, 8248120), (20, 6598496), (32, 4124060), (40, 3299248), (64, 2062030), (80, 1649624), (128, 1031015), (160, 824812), (320, 412406), (640, 206203)]