491256320

素因数分解:

$2^9\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1511}}^1$

素因数の和:1661

約数の個数: 80

約数和(自身を含む): 1187923968

約数和(自身を除く): 696667648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 512, 635, 640, 1016, 1270, 1280, 1511, 2032, 2540, 2560, 3022, 4064, 5080, 6044, 7555, 8128, 10160, 12088, 15110, 16256, 20320, 24176, 30220, 32512, 40640, 48352, 60440, 65024, 81280, 96704, 120880, 162560, 191897, 193408, 241760, 325120, 383794, 386816, 483520, 767588, 773632, 959485, 967040, 1535176, 1918970, 1934080, 3070352, 3837940, 3868160, 6140704, 7675880, 12281408, 15351760, 24562816, 30703520, 49125632, 61407040, 98251264, 122814080, 245628160, 491256320]

約数ペア:

[(1, 491256320), (2, 245628160), (4, 122814080), (5, 98251264), (8, 61407040), (10, 49125632), (16, 30703520), (20, 24562816), (32, 15351760), (40, 12281408), (64, 7675880), (80, 6140704), (127, 3868160), (128, 3837940), (160, 3070352), (254, 1934080), (256, 1918970), (320, 1535176), (508, 967040), (512, 959485), (635, 773632), (640, 767588), (1016, 483520), (1270, 386816), (1280, 383794), (1511, 325120), (2032, 241760), (2540, 193408), (2560, 191897), (3022, 162560), (4064, 120880), (5080, 96704), (6044, 81280), (7555, 65024), (8128, 60440), (10160, 48352), (12088, 40640), (15110, 32512), (16256, 30220), (20320, 24176)]