308927480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1\times {\mathrm{613}}^1$

素因数の和:960

約数の個数: 64

約数和(自身を含む): 714843360

約数和(自身を除く): 405915880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 293, 344, 430, 586, 613, 860, 1172, 1226, 1465, 1720, 2344, 2452, 2930, 3065, 4904, 5860, 6130, 11720, 12260, 12599, 24520, 25198, 26359, 50396, 52718, 62995, 100792, 105436, 125990, 131795, 179609, 210872, 251980, 263590, 359218, 503960, 527180, 718436, 898045, 1054360, 1436872, 1796090, 3592180, 7184360, 7723187, 15446374, 30892748, 38615935, 61785496, 77231870, 154463740, 308927480]

約数ペア:

[(1, 308927480), (2, 154463740), (4, 77231870), (5, 61785496), (8, 38615935), (10, 30892748), (20, 15446374), (40, 7723187), (43, 7184360), (86, 3592180), (172, 1796090), (215, 1436872), (293, 1054360), (344, 898045), (430, 718436), (586, 527180), (613, 503960), (860, 359218), (1172, 263590), (1226, 251980), (1465, 210872), (1720, 179609), (2344, 131795), (2452, 125990), (2930, 105436), (3065, 100792), (4904, 62995), (5860, 52718), (6130, 50396), (11720, 26359), (12260, 25198), (12599, 24520)]