20355680

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:192

約数の個数: 96

約数和(自身を含む): 51438240

約数和(自身を除く): 31082560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 41, 58, 80, 82, 107, 116, 145, 160, 164, 205, 214, 232, 290, 328, 410, 428, 464, 535, 580, 656, 820, 856, 928, 1070, 1160, 1189, 1312, 1640, 1712, 2140, 2320, 2378, 3103, 3280, 3424, 4280, 4387, 4640, 4756, 5945, 6206, 6560, 8560, 8774, 9512, 11890, 12412, 15515, 17120, 17548, 19024, 21935, 23780, 24824, 31030, 35096, 38048, 43870, 47560, 49648, 62060, 70192, 87740, 95120, 99296, 124120, 127223, 140384, 175480, 190240, 248240, 254446, 350960, 496480, 508892, 636115, 701920, 1017784, 1272230, 2035568, 2544460, 4071136, 5088920, 10177840, 20355680]

約数ペア:

[(1, 20355680), (2, 10177840), (4, 5088920), (5, 4071136), (8, 2544460), (10, 2035568), (16, 1272230), (20, 1017784), (29, 701920), (32, 636115), (40, 508892), (41, 496480), (58, 350960), (80, 254446), (82, 248240), (107, 190240), (116, 175480), (145, 140384), (160, 127223), (164, 124120), (205, 99296), (214, 95120), (232, 87740), (290, 70192), (328, 62060), (410, 49648), (428, 47560), (464, 43870), (535, 38048), (580, 35096), (656, 31030), (820, 24824), (856, 23780), (928, 21935), (1070, 19024), (1160, 17548), (1189, 17120), (1312, 15515), (1640, 12412), (1712, 11890), (2140, 9512), (2320, 8774), (2378, 8560), (3103, 6560), (3280, 6206), (3424, 5945), (4280, 4756), (4387, 4640)]