639223410

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{659}}^1$

素因数の和:856

約数の個数: 128

約数和(自身を含む): 1824768000

約数和(自身を除く): 1185544590

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 149, 155, 186, 210, 217, 298, 310, 434, 447, 465, 651, 659, 745, 894, 930, 1043, 1085, 1302, 1318, 1490, 1977, 2086, 2170, 2235, 3129, 3255, 3295, 3954, 4470, 4613, 4619, 5215, 6258, 6510, 6590, 9226, 9238, 9885, 10430, 13839, 13857, 15645, 19770, 20429, 23065, 23095, 27678, 27714, 31290, 32333, 40858, 46130, 46190, 61287, 64666, 69195, 69285, 96999, 98191, 102145, 122574, 138390, 138570, 143003, 161665, 193998, 196382, 204290, 286006, 294573, 306435, 323330, 429009, 484995, 490955, 589146, 612870, 687337, 715015, 858018, 969990, 981910, 1374674, 1430030, 1472865, 2062011, 2145045, 2945730, 3043921, 3436685, 4124022, 4290090, 6087842, 6873370, 9131763, 10310055, 15219605, 18263526, 20620110, 21307447, 30439210, 42614894, 45658815, 63922341, 91317630, 106537235, 127844682, 213074470, 319611705, 639223410]

約数ペア:

[(1, 639223410), (2, 319611705), (3, 213074470), (5, 127844682), (6, 106537235), (7, 91317630), (10, 63922341), (14, 45658815), (15, 42614894), (21, 30439210), (30, 21307447), (31, 20620110), (35, 18263526), (42, 15219605), (62, 10310055), (70, 9131763), (93, 6873370), (105, 6087842), (149, 4290090), (155, 4124022), (186, 3436685), (210, 3043921), (217, 2945730), (298, 2145045), (310, 2062011), (434, 1472865), (447, 1430030), (465, 1374674), (651, 981910), (659, 969990), (745, 858018), (894, 715015), (930, 687337), (1043, 612870), (1085, 589146), (1302, 490955), (1318, 484995), (1490, 429009), (1977, 323330), (2086, 306435), (2170, 294573), (2235, 286006), (3129, 204290), (3255, 196382), (3295, 193998), (3954, 161665), (4470, 143003), (4613, 138570), (4619, 138390), (5215, 122574), (6258, 102145), (6510, 98191), (6590, 96999), (9226, 69285), (9238, 69195), (9885, 64666), (10430, 61287), (13839, 46190), (13857, 46130), (15645, 40858), (19770, 32333), (20429, 31290), (23065, 27714), (23095, 27678)]