20692960

素因数分解:

$2^5\times 5^1\times {\mathrm{283}}^1\times {\mathrm{457}}^1$

素因数の和:755

約数の個数: 48

約数和(自身を含む): 49167216

約数和(自身を除く): 28474256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 283, 457, 566, 914, 1132, 1415, 1828, 2264, 2285, 2830, 3656, 4528, 4570, 5660, 7312, 9056, 9140, 11320, 14624, 18280, 22640, 36560, 45280, 73120, 129331, 258662, 517324, 646655, 1034648, 1293310, 2069296, 2586620, 4138592, 5173240, 10346480, 20692960]

約数ペア:

[(1, 20692960), (2, 10346480), (4, 5173240), (5, 4138592), (8, 2586620), (10, 2069296), (16, 1293310), (20, 1034648), (32, 646655), (40, 517324), (80, 258662), (160, 129331), (283, 73120), (457, 45280), (566, 36560), (914, 22640), (1132, 18280), (1415, 14624), (1828, 11320), (2264, 9140), (2285, 9056), (2830, 7312), (3656, 5660), (4528, 4570)]