81910360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{79}}^1$

素因数の和:150

約数の個数: 144

約数和(自身を含む): 226951200

約数和(自身を除く): 145040840

約数列:

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

約数ペア:

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