217742220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2647}}^1$

素因数の和:3119

約数の個数: 72

約数和(自身を含む): 662180064

約数和(自身を除く): 444437844

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 457, 914, 1371, 1828, 2285, 2647, 2742, 4113, 4570, 5294, 5484, 6855, 7941, 8226, 9140, 10588, 13235, 13710, 15882, 16452, 20565, 23823, 26470, 27420, 31764, 39705, 41130, 47646, 52940, 79410, 82260, 95292, 119115, 158820, 238230, 476460, 1209679, 2419358, 3629037, 4838716, 6048395, 7258074, 10887111, 12096790, 14516148, 18145185, 21774222, 24193580, 36290370, 43548444, 54435555, 72580740, 108871110, 217742220]

約数ペア:

[(1, 217742220), (2, 108871110), (3, 72580740), (4, 54435555), (5, 43548444), (6, 36290370), (9, 24193580), (10, 21774222), (12, 18145185), (15, 14516148), (18, 12096790), (20, 10887111), (30, 7258074), (36, 6048395), (45, 4838716), (60, 3629037), (90, 2419358), (180, 1209679), (457, 476460), (914, 238230), (1371, 158820), (1828, 119115), (2285, 95292), (2647, 82260), (2742, 79410), (4113, 52940), (4570, 47646), (5294, 41130), (5484, 39705), (6855, 31764), (7941, 27420), (8226, 26470), (9140, 23823), (10588, 20565), (13235, 16452), (13710, 15882)]