18515691680

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1145773}}^1$

素因数の和:1145889

約数の個数: 48

約数和(自身を含む): 44176462344

約数和(自身を除く): 25660770664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 8080, 16160, 1145773, 2291546, 4583092, 5728865, 9166184, 11457730, 18332368, 22915460, 36664736, 45830920, 91661840, 115723073, 183323680, 231446146, 462892292, 578615365, 925784584, 1157230730, 1851569168, 2314461460, 3703138336, 4628922920, 9257845840, 18515691680]

約数ペア:

[(1, 18515691680), (2, 9257845840), (4, 4628922920), (5, 3703138336), (8, 2314461460), (10, 1851569168), (16, 1157230730), (20, 925784584), (32, 578615365), (40, 462892292), (80, 231446146), (101, 183323680), (160, 115723073), (202, 91661840), (404, 45830920), (505, 36664736), (808, 22915460), (1010, 18332368), (1616, 11457730), (2020, 9166184), (3232, 5728865), (4040, 4583092), (8080, 2291546), (16160, 1145773)]