405969920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2143}}^1$

素因数の和:2205

約数の個数: 88

約数和(自身を含む): 1000639104

約数和(自身を除く): 594669184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 296, 320, 370, 512, 592, 640, 740, 1024, 1184, 1280, 1480, 2143, 2368, 2560, 2960, 4286, 4736, 5120, 5920, 8572, 9472, 10715, 11840, 17144, 18944, 21430, 23680, 34288, 37888, 42860, 47360, 68576, 79291, 85720, 94720, 137152, 158582, 171440, 189440, 274304, 317164, 342880, 396455, 548608, 634328, 685760, 792910, 1097216, 1268656, 1371520, 1585820, 2194432, 2537312, 2743040, 3171640, 5074624, 5486080, 6343280, 10149248, 10972160, 12686560, 20298496, 25373120, 40596992, 50746240, 81193984, 101492480, 202984960, 405969920]

約数ペア:

[(1, 405969920), (2, 202984960), (4, 101492480), (5, 81193984), (8, 50746240), (10, 40596992), (16, 25373120), (20, 20298496), (32, 12686560), (37, 10972160), (40, 10149248), (64, 6343280), (74, 5486080), (80, 5074624), (128, 3171640), (148, 2743040), (160, 2537312), (185, 2194432), (256, 1585820), (296, 1371520), (320, 1268656), (370, 1097216), (512, 792910), (592, 685760), (640, 634328), (740, 548608), (1024, 396455), (1184, 342880), (1280, 317164), (1480, 274304), (2143, 189440), (2368, 171440), (2560, 158582), (2960, 137152), (4286, 94720), (4736, 85720), (5120, 79291), (5920, 68576), (8572, 47360), (9472, 42860), (10715, 37888), (11840, 34288), (17144, 23680), (18944, 21430)]