19755520

素因数分解:

$2^9\times 5^1\times {\mathrm{7717}}^1$

素因数の和:7740

約数の個数: 40

約数和(自身を含む): 47373084

約数和(自身を除く): 27617564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7717, 15434, 30868, 38585, 61736, 77170, 123472, 154340, 246944, 308680, 493888, 617360, 987776, 1234720, 1975552, 2469440, 3951104, 4938880, 9877760, 19755520]

約数ペア:

[(1, 19755520), (2, 9877760), (4, 4938880), (5, 3951104), (8, 2469440), (10, 1975552), (16, 1234720), (20, 987776), (32, 617360), (40, 493888), (64, 308680), (80, 246944), (128, 154340), (160, 123472), (256, 77170), (320, 61736), (512, 38585), (640, 30868), (1280, 15434), (2560, 7717)]