321056000

素因数分解:

$2^8\times 5^3\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:237

約数の個数: 144

約数和(自身を含む): 816291840

約数和(自身を除く): 495235840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 125, 127, 128, 158, 160, 200, 250, 254, 256, 316, 320, 395, 400, 500, 508, 632, 635, 640, 790, 800, 1000, 1016, 1264, 1270, 1280, 1580, 1600, 1975, 2000, 2032, 2528, 2540, 3160, 3175, 3200, 3950, 4000, 4064, 5056, 5080, 6320, 6350, 6400, 7900, 8000, 8128, 9875, 10033, 10112, 10160, 12640, 12700, 15800, 15875, 16000, 16256, 19750, 20066, 20224, 20320, 25280, 25400, 31600, 31750, 32000, 32512, 39500, 40132, 40640, 50165, 50560, 50800, 63200, 63500, 79000, 80264, 81280, 100330, 101120, 101600, 126400, 127000, 158000, 160528, 162560, 200660, 203200, 250825, 252800, 254000, 316000, 321056, 401320, 406400, 501650, 505600, 508000, 632000, 642112, 802640, 812800, 1003300, 1016000, 1254125, 1264000, 1284224, 1605280, 2006600, 2032000, 2508250, 2528000, 2568448, 3210560, 4013200, 4064000, 5016500, 6421120, 8026400, 10033000, 12842240, 16052800, 20066000, 32105600, 40132000, 64211200, 80264000, 160528000, 321056000]

約数ペア:

[(1, 321056000), (2, 160528000), (4, 80264000), (5, 64211200), (8, 40132000), (10, 32105600), (16, 20066000), (20, 16052800), (25, 12842240), (32, 10033000), (40, 8026400), (50, 6421120), (64, 5016500), (79, 4064000), (80, 4013200), (100, 3210560), (125, 2568448), (127, 2528000), (128, 2508250), (158, 2032000), (160, 2006600), (200, 1605280), (250, 1284224), (254, 1264000), (256, 1254125), (316, 1016000), (320, 1003300), (395, 812800), (400, 802640), (500, 642112), (508, 632000), (632, 508000), (635, 505600), (640, 501650), (790, 406400), (800, 401320), (1000, 321056), (1016, 316000), (1264, 254000), (1270, 252800), (1280, 250825), (1580, 203200), (1600, 200660), (1975, 162560), (2000, 160528), (2032, 158000), (2528, 127000), (2540, 126400), (3160, 101600), (3175, 101120), (3200, 100330), (3950, 81280), (4000, 80264), (4064, 79000), (5056, 63500), (5080, 63200), (6320, 50800), (6350, 50560), (6400, 50165), (7900, 40640), (8000, 40132), (8128, 39500), (9875, 32512), (10033, 32000), (10112, 31750), (10160, 31600), (12640, 25400), (12700, 25280), (15800, 20320), (15875, 20224), (16000, 20066), (16256, 19750)]