18479380

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 40602240

約数和(自身を除く): 22122860

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 151, 211, 290, 302, 422, 580, 604, 755, 844, 1055, 1510, 2110, 3020, 4220, 4379, 6119, 8758, 12238, 17516, 21895, 24476, 30595, 31861, 43790, 61190, 63722, 87580, 122380, 127444, 159305, 318610, 637220, 923969, 1847938, 3695876, 4619845, 9239690, 18479380]

約数ペア:

[(1, 18479380), (2, 9239690), (4, 4619845), (5, 3695876), (10, 1847938), (20, 923969), (29, 637220), (58, 318610), (116, 159305), (145, 127444), (151, 122380), (211, 87580), (290, 63722), (302, 61190), (422, 43790), (580, 31861), (604, 30595), (755, 24476), (844, 21895), (1055, 17516), (1510, 12238), (2110, 8758), (3020, 6119), (4220, 4379)]