1688893640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{1087}}^1$

素因数の和:1315

約数の個数: 128

約数和(自身を含む): 4512153600

約数和(自身を除く): 2823259960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 179, 217, 248, 280, 310, 358, 434, 620, 716, 868, 895, 1085, 1087, 1240, 1253, 1432, 1736, 1790, 2170, 2174, 2506, 3580, 4340, 4348, 5012, 5435, 5549, 6265, 7160, 7609, 8680, 8696, 10024, 10870, 11098, 12530, 15218, 21740, 22196, 25060, 27745, 30436, 33697, 38045, 38843, 43480, 44392, 50120, 55490, 60872, 67394, 76090, 77686, 110980, 134788, 152180, 155372, 168485, 194215, 194573, 221960, 235879, 269576, 304360, 310744, 336970, 388430, 389146, 471758, 673940, 776860, 778292, 943516, 972865, 1179395, 1347880, 1362011, 1553720, 1556584, 1887032, 1945730, 2358790, 2724022, 3891460, 4717580, 5448044, 6031763, 6810055, 7782920, 9435160, 10896088, 12063526, 13620110, 24127052, 27240220, 30158815, 42222341, 48254104, 54480440, 60317630, 84444682, 120635260, 168889364, 211111705, 241270520, 337778728, 422223410, 844446820, 1688893640]

約数ペア:

[(1, 1688893640), (2, 844446820), (4, 422223410), (5, 337778728), (7, 241270520), (8, 211111705), (10, 168889364), (14, 120635260), (20, 84444682), (28, 60317630), (31, 54480440), (35, 48254104), (40, 42222341), (56, 30158815), (62, 27240220), (70, 24127052), (124, 13620110), (140, 12063526), (155, 10896088), (179, 9435160), (217, 7782920), (248, 6810055), (280, 6031763), (310, 5448044), (358, 4717580), (434, 3891460), (620, 2724022), (716, 2358790), (868, 1945730), (895, 1887032), (1085, 1556584), (1087, 1553720), (1240, 1362011), (1253, 1347880), (1432, 1179395), (1736, 972865), (1790, 943516), (2170, 778292), (2174, 776860), (2506, 673940), (3580, 471758), (4340, 389146), (4348, 388430), (5012, 336970), (5435, 310744), (5549, 304360), (6265, 269576), (7160, 235879), (7609, 221960), (8680, 194573), (8696, 194215), (10024, 168485), (10870, 155372), (11098, 152180), (12530, 134788), (15218, 110980), (21740, 77686), (22196, 76090), (25060, 67394), (27745, 60872), (30436, 55490), (33697, 50120), (38045, 44392), (38843, 43480)]