399689920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1637}}^1$

素因数の和:1770

約数の個数: 112

約数和(自身を含む): 1098377280

約数和(自身を除く): 698687360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 109, 112, 140, 160, 218, 224, 280, 320, 436, 448, 545, 560, 763, 872, 1090, 1120, 1526, 1637, 1744, 2180, 2240, 3052, 3274, 3488, 3815, 4360, 6104, 6548, 6976, 7630, 8185, 8720, 11459, 12208, 13096, 15260, 16370, 17440, 22918, 24416, 26192, 30520, 32740, 34880, 45836, 48832, 52384, 57295, 61040, 65480, 91672, 104768, 114590, 122080, 130960, 178433, 183344, 229180, 244160, 261920, 356866, 366688, 458360, 523840, 713732, 733376, 892165, 916720, 1249031, 1427464, 1784330, 1833440, 2498062, 2854928, 3568660, 3666880, 4996124, 5709856, 6245155, 7137320, 9992248, 11419712, 12490310, 14274640, 19984496, 24980620, 28549280, 39968992, 49961240, 57098560, 79937984, 99922480, 199844960, 399689920]

約数ペア:

[(1, 399689920), (2, 199844960), (4, 99922480), (5, 79937984), (7, 57098560), (8, 49961240), (10, 39968992), (14, 28549280), (16, 24980620), (20, 19984496), (28, 14274640), (32, 12490310), (35, 11419712), (40, 9992248), (56, 7137320), (64, 6245155), (70, 5709856), (80, 4996124), (109, 3666880), (112, 3568660), (140, 2854928), (160, 2498062), (218, 1833440), (224, 1784330), (280, 1427464), (320, 1249031), (436, 916720), (448, 892165), (545, 733376), (560, 713732), (763, 523840), (872, 458360), (1090, 366688), (1120, 356866), (1526, 261920), (1637, 244160), (1744, 229180), (2180, 183344), (2240, 178433), (3052, 130960), (3274, 122080), (3488, 114590), (3815, 104768), (4360, 91672), (6104, 65480), (6548, 61040), (6976, 57295), (7630, 52384), (8185, 48832), (8720, 45836), (11459, 34880), (12208, 32740), (13096, 30520), (15260, 26192), (16370, 24416), (17440, 22918)]