80451280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:333

約数の個数: 160

約数和(自身を含む): 236484864

約数和(自身を除く): 156033584

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 43, 52, 56, 65, 70, 80, 86, 91, 104, 112, 130, 140, 172, 182, 208, 215, 257, 260, 280, 301, 344, 364, 430, 455, 514, 520, 559, 560, 602, 688, 728, 860, 910, 1028, 1040, 1118, 1204, 1285, 1456, 1505, 1720, 1799, 1820, 2056, 2236, 2408, 2570, 2795, 3010, 3341, 3440, 3598, 3640, 3913, 4112, 4472, 4816, 5140, 5590, 6020, 6682, 7196, 7280, 7826, 8944, 8995, 10280, 11051, 11180, 12040, 13364, 14392, 15652, 16705, 17990, 19565, 20560, 22102, 22360, 23387, 24080, 26728, 28784, 31304, 33410, 35980, 39130, 44204, 44720, 46774, 53456, 55255, 62608, 66820, 71960, 77357, 78260, 88408, 93548, 110510, 116935, 133640, 143663, 143920, 154714, 156520, 176816, 187096, 221020, 233870, 267280, 287326, 309428, 313040, 374192, 386785, 442040, 467740, 574652, 618856, 718315, 773570, 884080, 935480, 1005641, 1149304, 1237712, 1436630, 1547140, 1870960, 2011282, 2298608, 2873260, 3094280, 4022564, 5028205, 5746520, 6188560, 8045128, 10056410, 11493040, 16090256, 20112820, 40225640, 80451280]

約数ペア:

[(1, 80451280), (2, 40225640), (4, 20112820), (5, 16090256), (7, 11493040), (8, 10056410), (10, 8045128), (13, 6188560), (14, 5746520), (16, 5028205), (20, 4022564), (26, 3094280), (28, 2873260), (35, 2298608), (40, 2011282), (43, 1870960), (52, 1547140), (56, 1436630), (65, 1237712), (70, 1149304), (80, 1005641), (86, 935480), (91, 884080), (104, 773570), (112, 718315), (130, 618856), (140, 574652), (172, 467740), (182, 442040), (208, 386785), (215, 374192), (257, 313040), (260, 309428), (280, 287326), (301, 267280), (344, 233870), (364, 221020), (430, 187096), (455, 176816), (514, 156520), (520, 154714), (559, 143920), (560, 143663), (602, 133640), (688, 116935), (728, 110510), (860, 93548), (910, 88408), (1028, 78260), (1040, 77357), (1118, 71960), (1204, 66820), (1285, 62608), (1456, 55255), (1505, 53456), (1720, 46774), (1799, 44720), (1820, 44204), (2056, 39130), (2236, 35980), (2408, 33410), (2570, 31304), (2795, 28784), (3010, 26728), (3341, 24080), (3440, 23387), (3598, 22360), (3640, 22102), (3913, 20560), (4112, 19565), (4472, 17990), (4816, 16705), (5140, 15652), (5590, 14392), (6020, 13364), (6682, 12040), (7196, 11180), (7280, 11051), (7826, 10280), (8944, 8995)]