28224400

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{1721}}^1$

素因数の和:1780

約数の個数: 60

約数和(自身を含む): 69503364

約数和(自身を除く): 41278964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 164, 200, 205, 328, 400, 410, 656, 820, 1025, 1640, 1721, 2050, 3280, 3442, 4100, 6884, 8200, 8605, 13768, 16400, 17210, 27536, 34420, 43025, 68840, 70561, 86050, 137680, 141122, 172100, 282244, 344200, 352805, 564488, 688400, 705610, 1128976, 1411220, 1764025, 2822440, 3528050, 5644880, 7056100, 14112200, 28224400]

約数ペア:

[(1, 28224400), (2, 14112200), (4, 7056100), (5, 5644880), (8, 3528050), (10, 2822440), (16, 1764025), (20, 1411220), (25, 1128976), (40, 705610), (41, 688400), (50, 564488), (80, 352805), (82, 344200), (100, 282244), (164, 172100), (200, 141122), (205, 137680), (328, 86050), (400, 70561), (410, 68840), (656, 43025), (820, 34420), (1025, 27536), (1640, 17210), (1721, 16400), (2050, 13768), (3280, 8605), (3442, 8200), (4100, 6884)]