280283920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{563}}^1$

素因数の和:717

約数の個数: 120

約数和(自身を含む): 765379584

約数和(自身を除く): 485095664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 127, 140, 196, 245, 254, 280, 392, 490, 508, 560, 563, 635, 784, 889, 980, 1016, 1126, 1270, 1778, 1960, 2032, 2252, 2540, 2815, 3556, 3920, 3941, 4445, 4504, 5080, 5630, 6223, 7112, 7882, 8890, 9008, 10160, 11260, 12446, 14224, 15764, 17780, 19705, 22520, 24892, 27587, 31115, 31528, 35560, 39410, 45040, 49784, 55174, 62230, 63056, 71120, 71501, 78820, 99568, 110348, 124460, 137935, 143002, 157640, 220696, 248920, 275870, 286004, 315280, 357505, 441392, 497840, 500507, 551740, 572008, 715010, 1001014, 1103480, 1144016, 1430020, 2002028, 2206960, 2502535, 2860040, 3503549, 4004056, 5005070, 5720080, 7007098, 8008112, 10010140, 14014196, 17517745, 20020280, 28028392, 35035490, 40040560, 56056784, 70070980, 140141960, 280283920]

約数ペア:

[(1, 280283920), (2, 140141960), (4, 70070980), (5, 56056784), (7, 40040560), (8, 35035490), (10, 28028392), (14, 20020280), (16, 17517745), (20, 14014196), (28, 10010140), (35, 8008112), (40, 7007098), (49, 5720080), (56, 5005070), (70, 4004056), (80, 3503549), (98, 2860040), (112, 2502535), (127, 2206960), (140, 2002028), (196, 1430020), (245, 1144016), (254, 1103480), (280, 1001014), (392, 715010), (490, 572008), (508, 551740), (560, 500507), (563, 497840), (635, 441392), (784, 357505), (889, 315280), (980, 286004), (1016, 275870), (1126, 248920), (1270, 220696), (1778, 157640), (1960, 143002), (2032, 137935), (2252, 124460), (2540, 110348), (2815, 99568), (3556, 78820), (3920, 71501), (3941, 71120), (4445, 63056), (4504, 62230), (5080, 55174), (5630, 49784), (6223, 45040), (7112, 39410), (7882, 35560), (8890, 31528), (9008, 31115), (10160, 27587), (11260, 24892), (12446, 22520), (14224, 19705), (15764, 17780)]