280884800

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:869

約数の個数: 168

約数和(自身を含む): 816376320

約数和(自身を除く): 535491520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 62, 64, 70, 80, 100, 112, 124, 140, 155, 160, 175, 200, 217, 224, 248, 280, 310, 320, 350, 400, 434, 448, 496, 560, 620, 700, 775, 800, 809, 868, 992, 1085, 1120, 1240, 1400, 1550, 1600, 1618, 1736, 1984, 2170, 2240, 2480, 2800, 3100, 3236, 3472, 4045, 4340, 4960, 5425, 5600, 5663, 6200, 6472, 6944, 8090, 8680, 9920, 10850, 11200, 11326, 12400, 12944, 13888, 16180, 17360, 20225, 21700, 22652, 24800, 25079, 25888, 28315, 32360, 34720, 40450, 43400, 45304, 49600, 50158, 51776, 56630, 64720, 69440, 80900, 86800, 90608, 100316, 113260, 125395, 129440, 141575, 161800, 173600, 175553, 181216, 200632, 226520, 250790, 258880, 283150, 323600, 347200, 351106, 362432, 401264, 453040, 501580, 566300, 626975, 647200, 702212, 802528, 877765, 906080, 1003160, 1132600, 1253950, 1294400, 1404424, 1605056, 1755530, 1812160, 2006320, 2265200, 2507900, 2808848, 3511060, 4012640, 4388825, 4530400, 5015800, 5617696, 7022120, 8025280, 8777650, 9060800, 10031600, 11235392, 14044240, 17555300, 20063200, 28088480, 35110600, 40126400, 56176960, 70221200, 140442400, 280884800]

約数ペア:

[(1, 280884800), (2, 140442400), (4, 70221200), (5, 56176960), (7, 40126400), (8, 35110600), (10, 28088480), (14, 20063200), (16, 17555300), (20, 14044240), (25, 11235392), (28, 10031600), (31, 9060800), (32, 8777650), (35, 8025280), (40, 7022120), (50, 5617696), (56, 5015800), (62, 4530400), (64, 4388825), (70, 4012640), (80, 3511060), (100, 2808848), (112, 2507900), (124, 2265200), (140, 2006320), (155, 1812160), (160, 1755530), (175, 1605056), (200, 1404424), (217, 1294400), (224, 1253950), (248, 1132600), (280, 1003160), (310, 906080), (320, 877765), (350, 802528), (400, 702212), (434, 647200), (448, 626975), (496, 566300), (560, 501580), (620, 453040), (700, 401264), (775, 362432), (800, 351106), (809, 347200), (868, 323600), (992, 283150), (1085, 258880), (1120, 250790), (1240, 226520), (1400, 200632), (1550, 181216), (1600, 175553), (1618, 173600), (1736, 161800), (1984, 141575), (2170, 129440), (2240, 125395), (2480, 113260), (2800, 100316), (3100, 90608), (3236, 86800), (3472, 80900), (4045, 69440), (4340, 64720), (4960, 56630), (5425, 51776), (5600, 50158), (5663, 49600), (6200, 45304), (6472, 43400), (6944, 40450), (8090, 34720), (8680, 32360), (9920, 28315), (10850, 25888), (11200, 25079), (11326, 24800), (12400, 22652), (12944, 21700), (13888, 20225), (16180, 17360)]