399192960

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{809}}^1$

素因数の和:1088

約数の個数: 128

約数和(自身を含む): 1278957600

約数和(自身を除く): 879764640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 257, 320, 384, 480, 514, 640, 771, 809, 960, 1028, 1285, 1542, 1618, 1920, 2056, 2427, 2570, 3084, 3236, 3855, 4045, 4112, 4854, 5140, 6168, 6472, 7710, 8090, 8224, 9708, 10280, 12135, 12336, 12944, 15420, 16180, 16448, 19416, 20560, 24270, 24672, 25888, 30840, 32360, 32896, 38832, 41120, 48540, 49344, 51776, 61680, 64720, 77664, 82240, 97080, 98688, 103552, 123360, 129440, 155328, 164480, 194160, 207913, 246720, 258880, 310656, 388320, 415826, 493440, 517760, 623739, 776640, 831652, 1039565, 1247478, 1553280, 1663304, 2079130, 2494956, 3118695, 3326608, 4158260, 4989912, 6237390, 6653216, 8316520, 9979824, 12474780, 13306432, 16633040, 19959648, 24949560, 26612864, 33266080, 39919296, 49899120, 66532160, 79838592, 99798240, 133064320, 199596480, 399192960]

約数ペア:

[(1, 399192960), (2, 199596480), (3, 133064320), (4, 99798240), (5, 79838592), (6, 66532160), (8, 49899120), (10, 39919296), (12, 33266080), (15, 26612864), (16, 24949560), (20, 19959648), (24, 16633040), (30, 13306432), (32, 12474780), (40, 9979824), (48, 8316520), (60, 6653216), (64, 6237390), (80, 4989912), (96, 4158260), (120, 3326608), (128, 3118695), (160, 2494956), (192, 2079130), (240, 1663304), (257, 1553280), (320, 1247478), (384, 1039565), (480, 831652), (514, 776640), (640, 623739), (771, 517760), (809, 493440), (960, 415826), (1028, 388320), (1285, 310656), (1542, 258880), (1618, 246720), (1920, 207913), (2056, 194160), (2427, 164480), (2570, 155328), (3084, 129440), (3236, 123360), (3855, 103552), (4045, 98688), (4112, 97080), (4854, 82240), (5140, 77664), (6168, 64720), (6472, 61680), (7710, 51776), (8090, 49344), (8224, 48540), (9708, 41120), (10280, 38832), (12135, 32896), (12336, 32360), (12944, 30840), (15420, 25888), (16180, 24672), (16448, 24270), (19416, 20560)]