660100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:85

約数の個数: 72

約数和(自身を含む): 1749888

約数和(自身を除く): 1089788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 41, 46, 50, 70, 82, 92, 100, 115, 140, 161, 164, 175, 205, 230, 287, 322, 350, 410, 460, 574, 575, 644, 700, 805, 820, 943, 1025, 1148, 1150, 1435, 1610, 1886, 2050, 2300, 2870, 3220, 3772, 4025, 4100, 4715, 5740, 6601, 7175, 8050, 9430, 13202, 14350, 16100, 18860, 23575, 26404, 28700, 33005, 47150, 66010, 94300, 132020, 165025, 330050, 660100]

約数ペア:

[(1, 660100), (2, 330050), (4, 165025), (5, 132020), (7, 94300), (10, 66010), (14, 47150), (20, 33005), (23, 28700), (25, 26404), (28, 23575), (35, 18860), (41, 16100), (46, 14350), (50, 13202), (70, 9430), (82, 8050), (92, 7175), (100, 6601), (115, 5740), (140, 4715), (161, 4100), (164, 4025), (175, 3772), (205, 3220), (230, 2870), (287, 2300), (322, 2050), (350, 1886), (410, 1610), (460, 1435), (574, 1150), (575, 1148), (644, 1025), (700, 943), (805, 820)]