20118690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7211}}^1$

素因数の和:7255

約数の個数: 48

約数和(自身を含む): 54003456

約数和(自身を除く): 33884766

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7211, 14422, 21633, 36055, 43266, 64899, 72110, 108165, 129798, 216330, 223541, 324495, 447082, 648990, 670623, 1117705, 1341246, 2011869, 2235410, 3353115, 4023738, 6706230, 10059345, 20118690]

約数ペア:

[(1, 20118690), (2, 10059345), (3, 6706230), (5, 4023738), (6, 3353115), (9, 2235410), (10, 2011869), (15, 1341246), (18, 1117705), (30, 670623), (31, 648990), (45, 447082), (62, 324495), (90, 223541), (93, 216330), (155, 129798), (186, 108165), (279, 72110), (310, 64899), (465, 43266), (558, 36055), (930, 21633), (1395, 14422), (2790, 7211)]