209153920

素因数分解:

$2^7\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1163}}^1$

素因数の和:1463

約数の個数: 64

約数和(自身を含む): 502219440

約数和(自身を除く): 293065520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 281, 320, 562, 640, 1124, 1163, 1405, 2248, 2326, 2810, 4496, 4652, 5620, 5815, 8992, 9304, 11240, 11630, 17984, 18608, 22480, 23260, 35968, 37216, 44960, 46520, 74432, 89920, 93040, 148864, 179840, 186080, 326803, 372160, 653606, 744320, 1307212, 1634015, 2614424, 3268030, 5228848, 6536060, 10457696, 13072120, 20915392, 26144240, 41830784, 52288480, 104576960, 209153920]

約数ペア:

[(1, 209153920), (2, 104576960), (4, 52288480), (5, 41830784), (8, 26144240), (10, 20915392), (16, 13072120), (20, 10457696), (32, 6536060), (40, 5228848), (64, 3268030), (80, 2614424), (128, 1634015), (160, 1307212), (281, 744320), (320, 653606), (562, 372160), (640, 326803), (1124, 186080), (1163, 179840), (1405, 148864), (2248, 93040), (2326, 89920), (2810, 74432), (4496, 46520), (4652, 44960), (5620, 37216), (5815, 35968), (8992, 23260), (9304, 22480), (11240, 18608), (11630, 17984)]