78169600

素因数分解:

$2^9\times 5^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:256

約数の個数: 120

約数和(自身を含む): 200933568

約数和(自身を除く): 122763968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 197, 200, 248, 256, 310, 320, 394, 400, 496, 512, 620, 640, 775, 788, 800, 985, 992, 1240, 1280, 1550, 1576, 1600, 1970, 1984, 2480, 2560, 3100, 3152, 3200, 3940, 3968, 4925, 4960, 6107, 6200, 6304, 6400, 7880, 7936, 9850, 9920, 12214, 12400, 12608, 12800, 15760, 15872, 19700, 19840, 24428, 24800, 25216, 30535, 31520, 39400, 39680, 48856, 49600, 50432, 61070, 63040, 78800, 79360, 97712, 99200, 100864, 122140, 126080, 152675, 157600, 195424, 198400, 244280, 252160, 305350, 315200, 390848, 396800, 488560, 504320, 610700, 630400, 781696, 977120, 1221400, 1260800, 1563392, 1954240, 2442800, 2521600, 3126784, 3908480, 4885600, 7816960, 9771200, 15633920, 19542400, 39084800, 78169600]

約数ペア:

[(1, 78169600), (2, 39084800), (4, 19542400), (5, 15633920), (8, 9771200), (10, 7816960), (16, 4885600), (20, 3908480), (25, 3126784), (31, 2521600), (32, 2442800), (40, 1954240), (50, 1563392), (62, 1260800), (64, 1221400), (80, 977120), (100, 781696), (124, 630400), (128, 610700), (155, 504320), (160, 488560), (197, 396800), (200, 390848), (248, 315200), (256, 305350), (310, 252160), (320, 244280), (394, 198400), (400, 195424), (496, 157600), (512, 152675), (620, 126080), (640, 122140), (775, 100864), (788, 99200), (800, 97712), (985, 79360), (992, 78800), (1240, 63040), (1280, 61070), (1550, 50432), (1576, 49600), (1600, 48856), (1970, 39680), (1984, 39400), (2480, 31520), (2560, 30535), (3100, 25216), (3152, 24800), (3200, 24428), (3940, 19840), (3968, 19700), (4925, 15872), (4960, 15760), (6107, 12800), (6200, 12608), (6304, 12400), (6400, 12214), (7880, 9920), (7936, 9850)]