868871920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{419}}^1$

素因数の和:492

約数の個数: 180

約数和(自身を含む): 2462420520

約数和(自身を除く): 1593548600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 322, 368, 392, 419, 460, 490, 529, 560, 644, 784, 805, 838, 920, 980, 1058, 1127, 1288, 1610, 1676, 1840, 1960, 2095, 2116, 2254, 2576, 2645, 2933, 3220, 3352, 3703, 3920, 4190, 4232, 4508, 5290, 5635, 5866, 6440, 6704, 7406, 8380, 8464, 9016, 9637, 10580, 11270, 11732, 12880, 14665, 14812, 16760, 18032, 18515, 19274, 20531, 21160, 22540, 23464, 25921, 29330, 29624, 33520, 37030, 38548, 41062, 42320, 45080, 46928, 48185, 51842, 58660, 59248, 67459, 74060, 77096, 82124, 90160, 96370, 102655, 103684, 117320, 129605, 134918, 148120, 154192, 164248, 192740, 205310, 207368, 221651, 234640, 259210, 269836, 296240, 328496, 337295, 385480, 410620, 414736, 443302, 472213, 518420, 539672, 674590, 770960, 821240, 886604, 944426, 1036840, 1079344, 1108255, 1349180, 1551557, 1642480, 1773208, 1888852, 2073680, 2216510, 2361065, 2698360, 3103114, 3546416, 3777704, 4433020, 4722130, 5396720, 6206228, 7555408, 7757785, 8866040, 9444260, 10860899, 12412456, 15515570, 17732080, 18888520, 21721798, 24824912, 31031140, 37777040, 43443596, 54304495, 62062280, 86887192, 108608990, 124124560, 173774384, 217217980, 434435960, 868871920]

約数ペア:

[(1, 868871920), (2, 434435960), (4, 217217980), (5, 173774384), (7, 124124560), (8, 108608990), (10, 86887192), (14, 62062280), (16, 54304495), (20, 43443596), (23, 37777040), (28, 31031140), (35, 24824912), (40, 21721798), (46, 18888520), (49, 17732080), (56, 15515570), (70, 12412456), (80, 10860899), (92, 9444260), (98, 8866040), (112, 7757785), (115, 7555408), (140, 6206228), (161, 5396720), (184, 4722130), (196, 4433020), (230, 3777704), (245, 3546416), (280, 3103114), (322, 2698360), (368, 2361065), (392, 2216510), (419, 2073680), (460, 1888852), (490, 1773208), (529, 1642480), (560, 1551557), (644, 1349180), (784, 1108255), (805, 1079344), (838, 1036840), (920, 944426), (980, 886604), (1058, 821240), (1127, 770960), (1288, 674590), (1610, 539672), (1676, 518420), (1840, 472213), (1960, 443302), (2095, 414736), (2116, 410620), (2254, 385480), (2576, 337295), (2645, 328496), (2933, 296240), (3220, 269836), (3352, 259210), (3703, 234640), (3920, 221651), (4190, 207368), (4232, 205310), (4508, 192740), (5290, 164248), (5635, 154192), (5866, 148120), (6440, 134918), (6704, 129605), (7406, 117320), (8380, 103684), (8464, 102655), (9016, 96370), (9637, 90160), (10580, 82124), (11270, 77096), (11732, 74060), (12880, 67459), (14665, 59248), (14812, 58660), (16760, 51842), (18032, 48185), (18515, 46928), (19274, 45080), (20531, 42320), (21160, 41062), (22540, 38548), (23464, 37030), (25921, 33520), (29330, 29624)]