401264000

素因数分解:

$2^7\times 5^3\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:869

約数の個数: 128

約数和(自身を含む): 1031097600

約数和(自身を除く): 629833600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 128, 155, 160, 200, 248, 250, 310, 320, 400, 496, 500, 620, 640, 775, 800, 809, 992, 1000, 1240, 1550, 1600, 1618, 1984, 2000, 2480, 3100, 3200, 3236, 3875, 3968, 4000, 4045, 4960, 6200, 6472, 7750, 8000, 8090, 9920, 12400, 12944, 15500, 16000, 16180, 19840, 20225, 24800, 25079, 25888, 31000, 32360, 40450, 49600, 50158, 51776, 62000, 64720, 80900, 99200, 100316, 101125, 103552, 124000, 125395, 129440, 161800, 200632, 202250, 248000, 250790, 258880, 323600, 401264, 404500, 496000, 501580, 517760, 626975, 647200, 802528, 809000, 1003160, 1253950, 1294400, 1605056, 1618000, 2006320, 2507900, 2588800, 3134875, 3210112, 3236000, 4012640, 5015800, 6269750, 6472000, 8025280, 10031600, 12539500, 12944000, 16050560, 20063200, 25079000, 40126400, 50158000, 80252800, 100316000, 200632000, 401264000]

約数ペア:

[(1, 401264000), (2, 200632000), (4, 100316000), (5, 80252800), (8, 50158000), (10, 40126400), (16, 25079000), (20, 20063200), (25, 16050560), (31, 12944000), (32, 12539500), (40, 10031600), (50, 8025280), (62, 6472000), (64, 6269750), (80, 5015800), (100, 4012640), (124, 3236000), (125, 3210112), (128, 3134875), (155, 2588800), (160, 2507900), (200, 2006320), (248, 1618000), (250, 1605056), (310, 1294400), (320, 1253950), (400, 1003160), (496, 809000), (500, 802528), (620, 647200), (640, 626975), (775, 517760), (800, 501580), (809, 496000), (992, 404500), (1000, 401264), (1240, 323600), (1550, 258880), (1600, 250790), (1618, 248000), (1984, 202250), (2000, 200632), (2480, 161800), (3100, 129440), (3200, 125395), (3236, 124000), (3875, 103552), (3968, 101125), (4000, 100316), (4045, 99200), (4960, 80900), (6200, 64720), (6472, 62000), (7750, 51776), (8000, 50158), (8090, 49600), (9920, 40450), (12400, 32360), (12944, 31000), (15500, 25888), (16000, 25079), (16180, 24800), (19840, 20225)]