775168640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:578

約数の個数: 128

約数和(自身を含む): 1938816000

約数和(自身を除く): 1163647360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 89, 124, 128, 155, 160, 178, 248, 310, 320, 356, 439, 445, 496, 620, 640, 712, 878, 890, 992, 1240, 1424, 1756, 1780, 1984, 2195, 2480, 2759, 2848, 3512, 3560, 3968, 4390, 4960, 5518, 5696, 7024, 7120, 8780, 9920, 11036, 11392, 13609, 13795, 14048, 14240, 17560, 19840, 22072, 27218, 27590, 28096, 28480, 35120, 39071, 44144, 54436, 55180, 56192, 56960, 68045, 70240, 78142, 88288, 108872, 110360, 136090, 140480, 156284, 176576, 195355, 217744, 220720, 272180, 280960, 312568, 353152, 390710, 435488, 441440, 544360, 625136, 781420, 870976, 882880, 1088720, 1211201, 1250272, 1562840, 1741952, 1765760, 2177440, 2422402, 2500544, 3125680, 4354880, 4844804, 5001088, 6056005, 6251360, 8709760, 9689608, 12112010, 12502720, 19379216, 24224020, 25005440, 38758432, 48448040, 77516864, 96896080, 155033728, 193792160, 387584320, 775168640]

約数ペア:

[(1, 775168640), (2, 387584320), (4, 193792160), (5, 155033728), (8, 96896080), (10, 77516864), (16, 48448040), (20, 38758432), (31, 25005440), (32, 24224020), (40, 19379216), (62, 12502720), (64, 12112010), (80, 9689608), (89, 8709760), (124, 6251360), (128, 6056005), (155, 5001088), (160, 4844804), (178, 4354880), (248, 3125680), (310, 2500544), (320, 2422402), (356, 2177440), (439, 1765760), (445, 1741952), (496, 1562840), (620, 1250272), (640, 1211201), (712, 1088720), (878, 882880), (890, 870976), (992, 781420), (1240, 625136), (1424, 544360), (1756, 441440), (1780, 435488), (1984, 390710), (2195, 353152), (2480, 312568), (2759, 280960), (2848, 272180), (3512, 220720), (3560, 217744), (3968, 195355), (4390, 176576), (4960, 156284), (5518, 140480), (5696, 136090), (7024, 110360), (7120, 108872), (8780, 88288), (9920, 78142), (11036, 70240), (11392, 68045), (13609, 56960), (13795, 56192), (14048, 55180), (14240, 54436), (17560, 44144), (19840, 39071), (22072, 35120), (27218, 28480), (27590, 28096)]