21525560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1303}}^1$

素因数の和:1380

約数の個数: 64

約数和(自身を含む): 56332800

約数和(自身を除く): 34807240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 59, 70, 118, 140, 236, 280, 295, 413, 472, 590, 826, 1180, 1303, 1652, 2065, 2360, 2606, 3304, 4130, 5212, 6515, 8260, 9121, 10424, 13030, 16520, 18242, 26060, 36484, 45605, 52120, 72968, 76877, 91210, 153754, 182420, 307508, 364840, 384385, 538139, 615016, 768770, 1076278, 1537540, 2152556, 2690695, 3075080, 4305112, 5381390, 10762780, 21525560]

約数ペア:

[(1, 21525560), (2, 10762780), (4, 5381390), (5, 4305112), (7, 3075080), (8, 2690695), (10, 2152556), (14, 1537540), (20, 1076278), (28, 768770), (35, 615016), (40, 538139), (56, 384385), (59, 364840), (70, 307508), (118, 182420), (140, 153754), (236, 91210), (280, 76877), (295, 72968), (413, 52120), (472, 45605), (590, 36484), (826, 26060), (1180, 18242), (1303, 16520), (1652, 13030), (2065, 10424), (2360, 9121), (2606, 8260), (3304, 6515), (4130, 5212)]