253713920

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:216

約数の個数: 160

約数和(自身を含む): 659957760

約数和(自身を除く): 406243840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 31, 32, 40, 46, 62, 64, 80, 92, 115, 124, 128, 139, 155, 160, 184, 230, 248, 256, 278, 310, 320, 368, 460, 496, 512, 556, 620, 640, 695, 713, 736, 920, 992, 1112, 1240, 1280, 1390, 1426, 1472, 1840, 1984, 2224, 2480, 2560, 2780, 2852, 2944, 3197, 3565, 3680, 3968, 4309, 4448, 4960, 5560, 5704, 5888, 6394, 7130, 7360, 7936, 8618, 8896, 9920, 11120, 11408, 11776, 12788, 14260, 14720, 15872, 15985, 17236, 17792, 19840, 21545, 22240, 22816, 25576, 28520, 29440, 31970, 34472, 35584, 39680, 43090, 44480, 45632, 51152, 57040, 58880, 63940, 68944, 71168, 79360, 86180, 88960, 91264, 99107, 102304, 114080, 127880, 137888, 172360, 177920, 182528, 198214, 204608, 228160, 255760, 275776, 344720, 355840, 365056, 396428, 409216, 456320, 495535, 511520, 551552, 689440, 792856, 818432, 912640, 991070, 1023040, 1103104, 1378880, 1585712, 1636864, 1825280, 1982140, 2046080, 2206208, 2757760, 3171424, 3964280, 4092160, 5515520, 6342848, 7928560, 8184320, 11031040, 12685696, 15857120, 25371392, 31714240, 50742784, 63428480, 126856960, 253713920]

約数ペア:

[(1, 253713920), (2, 126856960), (4, 63428480), (5, 50742784), (8, 31714240), (10, 25371392), (16, 15857120), (20, 12685696), (23, 11031040), (31, 8184320), (32, 7928560), (40, 6342848), (46, 5515520), (62, 4092160), (64, 3964280), (80, 3171424), (92, 2757760), (115, 2206208), (124, 2046080), (128, 1982140), (139, 1825280), (155, 1636864), (160, 1585712), (184, 1378880), (230, 1103104), (248, 1023040), (256, 991070), (278, 912640), (310, 818432), (320, 792856), (368, 689440), (460, 551552), (496, 511520), (512, 495535), (556, 456320), (620, 409216), (640, 396428), (695, 365056), (713, 355840), (736, 344720), (920, 275776), (992, 255760), (1112, 228160), (1240, 204608), (1280, 198214), (1390, 182528), (1426, 177920), (1472, 172360), (1840, 137888), (1984, 127880), (2224, 114080), (2480, 102304), (2560, 99107), (2780, 91264), (2852, 88960), (2944, 86180), (3197, 79360), (3565, 71168), (3680, 68944), (3968, 63940), (4309, 58880), (4448, 57040), (4960, 51152), (5560, 45632), (5704, 44480), (5888, 43090), (6394, 39680), (7130, 35584), (7360, 34472), (7936, 31970), (8618, 29440), (8896, 28520), (9920, 25576), (11120, 22816), (11408, 22240), (11776, 21545), (12788, 19840), (14260, 17792), (14720, 17236), (15872, 15985)]