1668742400

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:717

約数の個数: 216

約数和(自身を含む): 4598705664

約数和(自身を除く): 2929963264

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 64, 65, 80, 100, 104, 124, 128, 130, 155, 160, 200, 208, 248, 256, 260, 310, 320, 325, 400, 403, 416, 496, 520, 620, 640, 647, 650, 775, 800, 806, 832, 992, 1040, 1240, 1280, 1294, 1300, 1550, 1600, 1612, 1664, 1984, 2015, 2080, 2480, 2588, 2600, 3100, 3200, 3224, 3235, 3328, 3968, 4030, 4160, 4960, 5176, 5200, 6200, 6400, 6448, 6470, 7936, 8060, 8320, 8411, 9920, 10075, 10352, 10400, 12400, 12896, 12940, 16120, 16175, 16640, 16822, 19840, 20057, 20150, 20704, 20800, 24800, 25792, 25880, 32240, 32350, 33644, 39680, 40114, 40300, 41408, 41600, 42055, 49600, 51584, 51760, 64480, 64700, 67288, 80228, 80600, 82816, 83200, 84110, 99200, 100285, 103168, 103520, 128960, 129400, 134576, 160456, 161200, 165632, 168220, 198400, 200570, 207040, 210275, 257920, 258800, 260741, 269152, 320912, 322400, 336440, 401140, 414080, 420550, 501425, 515840, 517600, 521482, 538304, 641824, 644800, 672880, 802280, 828160, 841100, 1002850, 1035200, 1042964, 1076608, 1283648, 1289600, 1303705, 1345760, 1604560, 1682200, 2005700, 2070400, 2085928, 2153216, 2567296, 2579200, 2607410, 2691520, 3209120, 3364400, 4011400, 4140800, 4171856, 5134592, 5214820, 5383040, 6418240, 6518525, 6728800, 8022800, 8343712, 10429640, 10766080, 12836480, 13037050, 13457600, 16045600, 16687424, 20859280, 25672960, 26074100, 26915200, 32091200, 33374848, 41718560, 52148200, 53830400, 64182400, 66749696, 83437120, 104296400, 128364800, 166874240, 208592800, 333748480, 417185600, 834371200, 1668742400]

約数ペア:

[(1, 1668742400), (2, 834371200), (4, 417185600), (5, 333748480), (8, 208592800), (10, 166874240), (13, 128364800), (16, 104296400), (20, 83437120), (25, 66749696), (26, 64182400), (31, 53830400), (32, 52148200), (40, 41718560), (50, 33374848), (52, 32091200), (62, 26915200), (64, 26074100), (65, 25672960), (80, 20859280), (100, 16687424), (104, 16045600), (124, 13457600), (128, 13037050), (130, 12836480), (155, 10766080), (160, 10429640), (200, 8343712), (208, 8022800), (248, 6728800), (256, 6518525), (260, 6418240), (310, 5383040), (320, 5214820), (325, 5134592), (400, 4171856), (403, 4140800), (416, 4011400), (496, 3364400), (520, 3209120), (620, 2691520), (640, 2607410), (647, 2579200), (650, 2567296), (775, 2153216), (800, 2085928), (806, 2070400), (832, 2005700), (992, 1682200), (1040, 1604560), (1240, 1345760), (1280, 1303705), (1294, 1289600), (1300, 1283648), (1550, 1076608), (1600, 1042964), (1612, 1035200), (1664, 1002850), (1984, 841100), (2015, 828160), (2080, 802280), (2480, 672880), (2588, 644800), (2600, 641824), (3100, 538304), (3200, 521482), (3224, 517600), (3235, 515840), (3328, 501425), (3968, 420550), (4030, 414080), (4160, 401140), (4960, 336440), (5176, 322400), (5200, 320912), (6200, 269152), (6400, 260741), (6448, 258800), (6470, 257920), (7936, 210275), (8060, 207040), (8320, 200570), (8411, 198400), (9920, 168220), (10075, 165632), (10352, 161200), (10400, 160456), (12400, 134576), (12896, 129400), (12940, 128960), (16120, 103520), (16175, 103168), (16640, 100285), (16822, 99200), (19840, 84110), (20057, 83200), (20150, 82816), (20704, 80600), (20800, 80228), (24800, 67288), (25792, 64700), (25880, 64480), (32240, 51760), (32350, 51584), (33644, 49600), (39680, 42055), (40114, 41600), (40300, 41408)]