163820720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{79}}^1$

素因数の和:152

約数の個数: 180

約数和(自身を含む): 469032480

約数和(自身を除く): 305211760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 79, 80, 92, 98, 112, 115, 140, 158, 161, 184, 196, 230, 245, 280, 316, 322, 368, 392, 395, 460, 490, 529, 553, 560, 632, 644, 784, 790, 805, 920, 980, 1058, 1106, 1127, 1264, 1288, 1580, 1610, 1817, 1840, 1960, 2116, 2212, 2254, 2576, 2645, 2765, 3160, 3220, 3634, 3703, 3871, 3920, 4232, 4424, 4508, 5290, 5530, 5635, 6320, 6440, 7268, 7406, 7742, 8464, 8848, 9016, 9085, 10580, 11060, 11270, 12719, 12880, 14536, 14812, 15484, 18032, 18170, 18515, 19355, 21160, 22120, 22540, 25438, 25921, 29072, 29624, 30968, 36340, 37030, 38710, 41791, 42320, 44240, 45080, 50876, 51842, 59248, 61936, 63595, 72680, 74060, 77420, 83582, 89033, 90160, 101752, 103684, 127190, 129605, 145360, 148120, 154840, 167164, 178066, 203504, 207368, 208955, 254380, 259210, 292537, 296240, 309680, 334328, 356132, 414736, 417910, 445165, 508760, 518420, 585074, 668656, 712264, 835820, 890330, 1017520, 1036840, 1170148, 1424528, 1462685, 1671640, 1780660, 2047759, 2073680, 2340296, 2925370, 3343280, 3561320, 4095518, 4680592, 5850740, 7122640, 8191036, 10238795, 11701480, 16382072, 20477590, 23402960, 32764144, 40955180, 81910360, 163820720]

約数ペア:

[(1, 163820720), (2, 81910360), (4, 40955180), (5, 32764144), (7, 23402960), (8, 20477590), (10, 16382072), (14, 11701480), (16, 10238795), (20, 8191036), (23, 7122640), (28, 5850740), (35, 4680592), (40, 4095518), (46, 3561320), (49, 3343280), (56, 2925370), (70, 2340296), (79, 2073680), (80, 2047759), (92, 1780660), (98, 1671640), (112, 1462685), (115, 1424528), (140, 1170148), (158, 1036840), (161, 1017520), (184, 890330), (196, 835820), (230, 712264), (245, 668656), (280, 585074), (316, 518420), (322, 508760), (368, 445165), (392, 417910), (395, 414736), (460, 356132), (490, 334328), (529, 309680), (553, 296240), (560, 292537), (632, 259210), (644, 254380), (784, 208955), (790, 207368), (805, 203504), (920, 178066), (980, 167164), (1058, 154840), (1106, 148120), (1127, 145360), (1264, 129605), (1288, 127190), (1580, 103684), (1610, 101752), (1817, 90160), (1840, 89033), (1960, 83582), (2116, 77420), (2212, 74060), (2254, 72680), (2576, 63595), (2645, 61936), (2765, 59248), (3160, 51842), (3220, 50876), (3634, 45080), (3703, 44240), (3871, 42320), (3920, 41791), (4232, 38710), (4424, 37030), (4508, 36340), (5290, 30968), (5530, 29624), (5635, 29072), (6320, 25921), (6440, 25438), (7268, 22540), (7406, 22120), (7742, 21160), (8464, 19355), (8848, 18515), (9016, 18170), (9085, 18032), (10580, 15484), (11060, 14812), (11270, 14536), (12719, 12880)]