2281720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 6091200

約数和(自身を除く): 3809480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 281, 290, 406, 562, 580, 812, 1015, 1124, 1160, 1405, 1624, 1967, 2030, 2248, 2810, 3934, 4060, 5620, 7868, 8120, 8149, 9835, 11240, 15736, 16298, 19670, 32596, 39340, 40745, 57043, 65192, 78680, 81490, 114086, 162980, 228172, 285215, 325960, 456344, 570430, 1140860, 2281720]

約数ペア:

[(1, 2281720), (2, 1140860), (4, 570430), (5, 456344), (7, 325960), (8, 285215), (10, 228172), (14, 162980), (20, 114086), (28, 81490), (29, 78680), (35, 65192), (40, 57043), (56, 40745), (58, 39340), (70, 32596), (116, 19670), (140, 16298), (145, 15736), (203, 11240), (232, 9835), (280, 8149), (281, 8120), (290, 7868), (406, 5620), (562, 4060), (580, 3934), (812, 2810), (1015, 2248), (1124, 2030), (1160, 1967), (1405, 1624)]