28661200

素因数分解:

$2^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{907}}^1$

素因数の和:1004

約数の個数: 60

約数和(自身を含む): 69807040

約数和(自身を除く): 41145840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 158, 200, 316, 395, 400, 632, 790, 907, 1264, 1580, 1814, 1975, 3160, 3628, 3950, 4535, 6320, 7256, 7900, 9070, 14512, 15800, 18140, 22675, 31600, 36280, 45350, 71653, 72560, 90700, 143306, 181400, 286612, 358265, 362800, 573224, 716530, 1146448, 1433060, 1791325, 2866120, 3582650, 5732240, 7165300, 14330600, 28661200]

約数ペア:

[(1, 28661200), (2, 14330600), (4, 7165300), (5, 5732240), (8, 3582650), (10, 2866120), (16, 1791325), (20, 1433060), (25, 1146448), (40, 716530), (50, 573224), (79, 362800), (80, 358265), (100, 286612), (158, 181400), (200, 143306), (316, 90700), (395, 72560), (400, 71653), (632, 45350), (790, 36280), (907, 31600), (1264, 22675), (1580, 18140), (1814, 15800), (1975, 14512), (3160, 9070), (3628, 7900), (3950, 7256), (4535, 6320)]