90269440

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{647}}^1$

素因数の和:777

約数の個数: 72

約数和(自身を含む): 218544480

約数和(自身を除く): 128275040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 545, 640, 647, 872, 1090, 1280, 1294, 1744, 2180, 2588, 3235, 3488, 4360, 5176, 6470, 6976, 8720, 10352, 12940, 13952, 17440, 20704, 25880, 27904, 34880, 41408, 51760, 69760, 70523, 82816, 103520, 139520, 141046, 165632, 207040, 282092, 352615, 414080, 564184, 705230, 828160, 1128368, 1410460, 2256736, 2820920, 4513472, 5641840, 9026944, 11283680, 18053888, 22567360, 45134720, 90269440]

約数ペア:

[(1, 90269440), (2, 45134720), (4, 22567360), (5, 18053888), (8, 11283680), (10, 9026944), (16, 5641840), (20, 4513472), (32, 2820920), (40, 2256736), (64, 1410460), (80, 1128368), (109, 828160), (128, 705230), (160, 564184), (218, 414080), (256, 352615), (320, 282092), (436, 207040), (545, 165632), (640, 141046), (647, 139520), (872, 103520), (1090, 82816), (1280, 70523), (1294, 69760), (1744, 51760), (2180, 41408), (2588, 34880), (3235, 27904), (3488, 25880), (4360, 20704), (5176, 17440), (6470, 13952), (6976, 12940), (8720, 10352)]