388353280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{487}}^1$

素因数の和:604

約数の個数: 144

約数和(自身を含む): 1077269760

約数和(自身を除く): 688916480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 112, 128, 140, 160, 178, 224, 256, 280, 320, 356, 445, 448, 487, 560, 623, 640, 712, 890, 896, 974, 1120, 1246, 1280, 1424, 1780, 1792, 1948, 2240, 2435, 2492, 2848, 3115, 3409, 3560, 3896, 4480, 4870, 4984, 5696, 6230, 6818, 7120, 7792, 8960, 9740, 9968, 11392, 12460, 13636, 14240, 15584, 17045, 19480, 19936, 22784, 24920, 27272, 28480, 31168, 34090, 38960, 39872, 43343, 49840, 54544, 56960, 62336, 68180, 77920, 79744, 86686, 99680, 109088, 113920, 124672, 136360, 155840, 159488, 173372, 199360, 216715, 218176, 272720, 303401, 311680, 346744, 398720, 433430, 436352, 545440, 606802, 623360, 693488, 797440, 866860, 872704, 1090880, 1213604, 1386976, 1517005, 1733720, 2181760, 2427208, 2773952, 3034010, 3467440, 4363520, 4854416, 5547904, 6068020, 6934880, 9708832, 11095808, 12136040, 13869760, 19417664, 24272080, 27739520, 38835328, 48544160, 55479040, 77670656, 97088320, 194176640, 388353280]

約数ペア:

[(1, 388353280), (2, 194176640), (4, 97088320), (5, 77670656), (7, 55479040), (8, 48544160), (10, 38835328), (14, 27739520), (16, 24272080), (20, 19417664), (28, 13869760), (32, 12136040), (35, 11095808), (40, 9708832), (56, 6934880), (64, 6068020), (70, 5547904), (80, 4854416), (89, 4363520), (112, 3467440), (128, 3034010), (140, 2773952), (160, 2427208), (178, 2181760), (224, 1733720), (256, 1517005), (280, 1386976), (320, 1213604), (356, 1090880), (445, 872704), (448, 866860), (487, 797440), (560, 693488), (623, 623360), (640, 606802), (712, 545440), (890, 436352), (896, 433430), (974, 398720), (1120, 346744), (1246, 311680), (1280, 303401), (1424, 272720), (1780, 218176), (1792, 216715), (1948, 199360), (2240, 173372), (2435, 159488), (2492, 155840), (2848, 136360), (3115, 124672), (3409, 113920), (3560, 109088), (3896, 99680), (4480, 86686), (4870, 79744), (4984, 77920), (5696, 68180), (6230, 62336), (6818, 56960), (7120, 54544), (7792, 49840), (8960, 43343), (9740, 39872), (9968, 38960), (11392, 34090), (12460, 31168), (13636, 28480), (14240, 27272), (15584, 24920), (17045, 22784), (19480, 19936)]