99811840

素因数分解:

$2^9\times 5^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:457

約数の個数: 80

約数和(自身を含む): 241984512

約数和(自身を除く): 142172672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 307, 320, 508, 512, 614, 635, 640, 1016, 1228, 1270, 1280, 1535, 2032, 2456, 2540, 2560, 3070, 4064, 4912, 5080, 6140, 8128, 9824, 10160, 12280, 16256, 19648, 20320, 24560, 32512, 38989, 39296, 40640, 49120, 65024, 77978, 78592, 81280, 98240, 155956, 157184, 162560, 194945, 196480, 311912, 325120, 389890, 392960, 623824, 779780, 785920, 1247648, 1559560, 2495296, 3119120, 4990592, 6238240, 9981184, 12476480, 19962368, 24952960, 49905920, 99811840]

約数ペア:

[(1, 99811840), (2, 49905920), (4, 24952960), (5, 19962368), (8, 12476480), (10, 9981184), (16, 6238240), (20, 4990592), (32, 3119120), (40, 2495296), (64, 1559560), (80, 1247648), (127, 785920), (128, 779780), (160, 623824), (254, 392960), (256, 389890), (307, 325120), (320, 311912), (508, 196480), (512, 194945), (614, 162560), (635, 157184), (640, 155956), (1016, 98240), (1228, 81280), (1270, 78592), (1280, 77978), (1535, 65024), (2032, 49120), (2456, 40640), (2540, 39296), (2560, 38989), (3070, 32512), (4064, 24560), (4912, 20320), (5080, 19648), (6140, 16256), (8128, 12280), (9824, 10160)]