399247360

素因数分解:

$2^{11}\times 5^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:461

約数の個数: 96

約数和(自身を含む): 968647680

約数和(自身を除く): 569400320

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, 1024, 1228, 1270, 1280, 1535, 2032, 2048, 2456, 2540, 2560, 3070, 4064, 4912, 5080, 5120, 6140, 8128, 9824, 10160, 10240, 12280, 16256, 19648, 20320, 24560, 32512, 38989, 39296, 40640, 49120, 65024, 77978, 78592, 81280, 98240, 130048, 155956, 157184, 162560, 194945, 196480, 260096, 311912, 314368, 325120, 389890, 392960, 623824, 628736, 650240, 779780, 785920, 1247648, 1300480, 1559560, 1571840, 2495296, 3119120, 3143680, 4990592, 6238240, 9981184, 12476480, 19962368, 24952960, 39924736, 49905920, 79849472, 99811840, 199623680, 399247360]

約数ペア:

[(1, 399247360), (2, 199623680), (4, 99811840), (5, 79849472), (8, 49905920), (10, 39924736), (16, 24952960), (20, 19962368), (32, 12476480), (40, 9981184), (64, 6238240), (80, 4990592), (127, 3143680), (128, 3119120), (160, 2495296), (254, 1571840), (256, 1559560), (307, 1300480), (320, 1247648), (508, 785920), (512, 779780), (614, 650240), (635, 628736), (640, 623824), (1016, 392960), (1024, 389890), (1228, 325120), (1270, 314368), (1280, 311912), (1535, 260096), (2032, 196480), (2048, 194945), (2456, 162560), (2540, 157184), (2560, 155956), (3070, 130048), (4064, 98240), (4912, 81280), (5080, 78592), (5120, 77978), (6140, 65024), (8128, 49120), (9824, 40640), (10160, 39296), (10240, 38989), (12280, 32512), (16256, 24560), (19648, 20320)]