788342420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1\times {\mathrm{2099}}^1$

素因数の和:2408

約数の個数: 48

約数和(自身を含む): 1682856000

約数和(自身を除く): 894513580

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 211, 356, 422, 445, 844, 890, 1055, 1780, 2099, 2110, 4198, 4220, 8396, 10495, 18779, 20990, 37558, 41980, 75116, 93895, 186811, 187790, 373622, 375580, 442889, 747244, 885778, 934055, 1771556, 1868110, 2214445, 3736220, 4428890, 8857780, 39417121, 78834242, 157668484, 197085605, 394171210, 788342420]

約数ペア:

[(1, 788342420), (2, 394171210), (4, 197085605), (5, 157668484), (10, 78834242), (20, 39417121), (89, 8857780), (178, 4428890), (211, 3736220), (356, 2214445), (422, 1868110), (445, 1771556), (844, 934055), (890, 885778), (1055, 747244), (1780, 442889), (2099, 375580), (2110, 373622), (4198, 187790), (4220, 186811), (8396, 93895), (10495, 75116), (18779, 41980), (20990, 37558)]