66323440

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2027}}^1$

素因数の和:2449

約数の個数: 40

約数和(自身を含む): 154655280

約数和(自身を除く): 88331840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2027, 2045, 3272, 4054, 4090, 6544, 8108, 8180, 10135, 16216, 16360, 20270, 32432, 32720, 40540, 81080, 162160, 829043, 1658086, 3316172, 4145215, 6632344, 8290430, 13264688, 16580860, 33161720, 66323440]

約数ペア:

[(1, 66323440), (2, 33161720), (4, 16580860), (5, 13264688), (8, 8290430), (10, 6632344), (16, 4145215), (20, 3316172), (40, 1658086), (80, 829043), (409, 162160), (818, 81080), (1636, 40540), (2027, 32720), (2045, 32432), (3272, 20270), (4054, 16360), (4090, 16216), (6544, 10135), (8108, 8180)]