215378916

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{571}}^1$

素因数の和:681

約数の個数: 72

約数和(自身を含む): 545729184

約数和(自身を除く): 330350268

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 43, 51, 68, 86, 102, 129, 172, 204, 258, 516, 571, 731, 1142, 1462, 1713, 1849, 2193, 2284, 2924, 3426, 3698, 4386, 5547, 6852, 7396, 8772, 9707, 11094, 19414, 22188, 24553, 29121, 31433, 38828, 49106, 58242, 62866, 73659, 94299, 98212, 116484, 125732, 147318, 188598, 294636, 377196, 417401, 834802, 1055779, 1252203, 1669604, 2111558, 2504406, 3167337, 4223116, 5008812, 6334674, 12669348, 17948243, 35896486, 53844729, 71792972, 107689458, 215378916]

約数ペア:

[(1, 215378916), (2, 107689458), (3, 71792972), (4, 53844729), (6, 35896486), (12, 17948243), (17, 12669348), (34, 6334674), (43, 5008812), (51, 4223116), (68, 3167337), (86, 2504406), (102, 2111558), (129, 1669604), (172, 1252203), (204, 1055779), (258, 834802), (516, 417401), (571, 377196), (731, 294636), (1142, 188598), (1462, 147318), (1713, 125732), (1849, 116484), (2193, 98212), (2284, 94299), (2924, 73659), (3426, 62866), (3698, 58242), (4386, 49106), (5547, 38828), (6852, 31433), (7396, 29121), (8772, 24553), (9707, 22188), (11094, 19414)]