2012398280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{6763}}^1$

素因数の和:6990

約数の個数: 64

約数和(自身を含む): 4660666560

約数和(自身を除く): 2648268280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 173, 215, 344, 346, 430, 692, 860, 865, 1384, 1720, 1730, 3460, 6763, 6920, 7439, 13526, 14878, 27052, 29756, 33815, 37195, 54104, 59512, 67630, 74390, 135260, 148780, 270520, 290809, 297560, 581618, 1163236, 1169999, 1454045, 2326472, 2339998, 2908090, 4679996, 5816180, 5849995, 9359992, 11632360, 11699990, 23399980, 46799960, 50309957, 100619914, 201239828, 251549785, 402479656, 503099570, 1006199140, 2012398280]

約数ペア:

[(1, 2012398280), (2, 1006199140), (4, 503099570), (5, 402479656), (8, 251549785), (10, 201239828), (20, 100619914), (40, 50309957), (43, 46799960), (86, 23399980), (172, 11699990), (173, 11632360), (215, 9359992), (344, 5849995), (346, 5816180), (430, 4679996), (692, 2908090), (860, 2339998), (865, 2326472), (1384, 1454045), (1720, 1169999), (1730, 1163236), (3460, 581618), (6763, 297560), (6920, 290809), (7439, 270520), (13526, 148780), (14878, 135260), (27052, 74390), (29756, 67630), (33815, 59512), (37195, 54104)]