204536320

素因数分解:

$2^9\times 5^1\times {\mathrm{109}}^1\times {\mathrm{733}}^1$

素因数の和:865

約数の個数: 80

約数和(自身を含む): 495582120

約数和(自身を除く): 291045800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 512, 545, 640, 733, 872, 1090, 1280, 1466, 1744, 2180, 2560, 2932, 3488, 3665, 4360, 5864, 6976, 7330, 8720, 11728, 13952, 14660, 17440, 23456, 27904, 29320, 34880, 46912, 55808, 58640, 69760, 79897, 93824, 117280, 139520, 159794, 187648, 234560, 279040, 319588, 375296, 399485, 469120, 639176, 798970, 938240, 1278352, 1597940, 1876480, 2556704, 3195880, 5113408, 6391760, 10226816, 12783520, 20453632, 25567040, 40907264, 51134080, 102268160, 204536320]

約数ペア:

[(1, 204536320), (2, 102268160), (4, 51134080), (5, 40907264), (8, 25567040), (10, 20453632), (16, 12783520), (20, 10226816), (32, 6391760), (40, 5113408), (64, 3195880), (80, 2556704), (109, 1876480), (128, 1597940), (160, 1278352), (218, 938240), (256, 798970), (320, 639176), (436, 469120), (512, 399485), (545, 375296), (640, 319588), (733, 279040), (872, 234560), (1090, 187648), (1280, 159794), (1466, 139520), (1744, 117280), (2180, 93824), (2560, 79897), (2932, 69760), (3488, 58640), (3665, 55808), (4360, 46912), (5864, 34880), (6976, 29320), (7330, 27904), (8720, 23456), (11728, 17440), (13952, 14660)]