26604640

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{647}}^1$

素因数の和:919

約数の個数: 48

約数和(自身を含む): 63195552

約数和(自身を除く): 36590912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 647, 1028, 1285, 1294, 2056, 2570, 2588, 3235, 4112, 5140, 5176, 6470, 8224, 10280, 10352, 12940, 20560, 20704, 25880, 41120, 51760, 103520, 166279, 332558, 665116, 831395, 1330232, 1662790, 2660464, 3325580, 5320928, 6651160, 13302320, 26604640]

約数ペア:

[(1, 26604640), (2, 13302320), (4, 6651160), (5, 5320928), (8, 3325580), (10, 2660464), (16, 1662790), (20, 1330232), (32, 831395), (40, 665116), (80, 332558), (160, 166279), (257, 103520), (514, 51760), (647, 41120), (1028, 25880), (1285, 20704), (1294, 20560), (2056, 12940), (2570, 10352), (2588, 10280), (3235, 8224), (4112, 6470), (5140, 5176)]