278327916

素因数分解:

$2^2\times 3^2\times {\mathrm{67}}^1\times {\mathrm{257}}^1\times {\mathrm{449}}^1$

素因数の和:783

約数の個数: 72

約数和(自身を含む): 718426800

約数和(自身を除く): 440098884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 67, 134, 201, 257, 268, 402, 449, 514, 603, 771, 804, 898, 1028, 1206, 1347, 1542, 1796, 2313, 2412, 2694, 3084, 4041, 4626, 5388, 8082, 9252, 16164, 17219, 30083, 34438, 51657, 60166, 68876, 90249, 103314, 115393, 120332, 154971, 180498, 206628, 230786, 270747, 309942, 346179, 360996, 461572, 541494, 619884, 692358, 1038537, 1082988, 1384716, 2077074, 4154148, 7731331, 15462662, 23193993, 30925324, 46387986, 69581979, 92775972, 139163958, 278327916]

約数ペア:

[(1, 278327916), (2, 139163958), (3, 92775972), (4, 69581979), (6, 46387986), (9, 30925324), (12, 23193993), (18, 15462662), (36, 7731331), (67, 4154148), (134, 2077074), (201, 1384716), (257, 1082988), (268, 1038537), (402, 692358), (449, 619884), (514, 541494), (603, 461572), (771, 360996), (804, 346179), (898, 309942), (1028, 270747), (1206, 230786), (1347, 206628), (1542, 180498), (1796, 154971), (2313, 120332), (2412, 115393), (2694, 103314), (3084, 90249), (4041, 68876), (4626, 60166), (5388, 51657), (8082, 34438), (9252, 30083), (16164, 17219)]