280807688

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{157}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 653361600

約数和(自身を除く): 372553912

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 41, 56, 76, 82, 133, 152, 157, 164, 266, 287, 314, 328, 532, 574, 628, 779, 1064, 1099, 1148, 1256, 1558, 1681, 2198, 2296, 2983, 3116, 3362, 4396, 5453, 5966, 6232, 6437, 6724, 8792, 10906, 11767, 11932, 12874, 13448, 20881, 21812, 23534, 23864, 25748, 31939, 41762, 43624, 45059, 47068, 51496, 63878, 83524, 90118, 94136, 122303, 127756, 167048, 180236, 223573, 244606, 255512, 263917, 360472, 447146, 489212, 527834, 856121, 894292, 978424, 1055668, 1712242, 1788584, 1847419, 2111336, 3424484, 3694838, 5014423, 6848968, 7389676, 10028846, 14779352, 20057692, 35100961, 40115384, 70201922, 140403844, 280807688]

約数ペア:

[(1, 280807688), (2, 140403844), (4, 70201922), (7, 40115384), (8, 35100961), (14, 20057692), (19, 14779352), (28, 10028846), (38, 7389676), (41, 6848968), (56, 5014423), (76, 3694838), (82, 3424484), (133, 2111336), (152, 1847419), (157, 1788584), (164, 1712242), (266, 1055668), (287, 978424), (314, 894292), (328, 856121), (532, 527834), (574, 489212), (628, 447146), (779, 360472), (1064, 263917), (1099, 255512), (1148, 244606), (1256, 223573), (1558, 180236), (1681, 167048), (2198, 127756), (2296, 122303), (2983, 94136), (3116, 90118), (3362, 83524), (4396, 63878), (5453, 51496), (5966, 47068), (6232, 45059), (6437, 43624), (6724, 41762), (8792, 31939), (10906, 25748), (11767, 23864), (11932, 23534), (12874, 21812), (13448, 20881)]