12240640

素因数分解:

$2^8\times 5^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 29948688

約数和(自身を除く): 17708048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 131, 146, 160, 256, 262, 292, 320, 365, 524, 584, 640, 655, 730, 1048, 1168, 1280, 1310, 1460, 2096, 2336, 2620, 2920, 4192, 4672, 5240, 5840, 8384, 9344, 9563, 10480, 11680, 16768, 18688, 19126, 20960, 23360, 33536, 38252, 41920, 46720, 47815, 76504, 83840, 93440, 95630, 153008, 167680, 191260, 306016, 382520, 612032, 765040, 1224064, 1530080, 2448128, 3060160, 6120320, 12240640]

約数ペア:

[(1, 12240640), (2, 6120320), (4, 3060160), (5, 2448128), (8, 1530080), (10, 1224064), (16, 765040), (20, 612032), (32, 382520), (40, 306016), (64, 191260), (73, 167680), (80, 153008), (128, 95630), (131, 93440), (146, 83840), (160, 76504), (256, 47815), (262, 46720), (292, 41920), (320, 38252), (365, 33536), (524, 23360), (584, 20960), (640, 19126), (655, 18688), (730, 16768), (1048, 11680), (1168, 10480), (1280, 9563), (1310, 9344), (1460, 8384), (2096, 5840), (2336, 5240), (2620, 4672), (2920, 4192)]