397794880

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{691}}^1$

素因数の和:972

約数の個数: 112

約数和(自身を含む): 1088355456

約数和(自身を除く): 690560576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 257, 280, 320, 448, 514, 560, 691, 1028, 1120, 1285, 1382, 1799, 2056, 2240, 2570, 2764, 3455, 3598, 4112, 4837, 5140, 5528, 6910, 7196, 8224, 8995, 9674, 10280, 11056, 13820, 14392, 16448, 17990, 19348, 20560, 22112, 24185, 27640, 28784, 35980, 38696, 41120, 44224, 48370, 55280, 57568, 71960, 77392, 82240, 96740, 110560, 115136, 143920, 154784, 177587, 193480, 221120, 287840, 309568, 355174, 386960, 575680, 710348, 773920, 887935, 1243109, 1420696, 1547840, 1775870, 2486218, 2841392, 3551740, 4972436, 5682784, 6215545, 7103480, 9944872, 11365568, 12431090, 14206960, 19889744, 24862180, 28413920, 39779488, 49724360, 56827840, 79558976, 99448720, 198897440, 397794880]

約数ペア:

[(1, 397794880), (2, 198897440), (4, 99448720), (5, 79558976), (7, 56827840), (8, 49724360), (10, 39779488), (14, 28413920), (16, 24862180), (20, 19889744), (28, 14206960), (32, 12431090), (35, 11365568), (40, 9944872), (56, 7103480), (64, 6215545), (70, 5682784), (80, 4972436), (112, 3551740), (140, 2841392), (160, 2486218), (224, 1775870), (257, 1547840), (280, 1420696), (320, 1243109), (448, 887935), (514, 773920), (560, 710348), (691, 575680), (1028, 386960), (1120, 355174), (1285, 309568), (1382, 287840), (1799, 221120), (2056, 193480), (2240, 177587), (2570, 154784), (2764, 143920), (3455, 115136), (3598, 110560), (4112, 96740), (4837, 82240), (5140, 77392), (5528, 71960), (6910, 57568), (7196, 55280), (8224, 48370), (8995, 44224), (9674, 41120), (10280, 38696), (11056, 35980), (13820, 28784), (14392, 27640), (16448, 24185), (17990, 22112), (19348, 20560)]