28815680

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5297}}^1$

素因数の和:5331

約数の個数: 56

約数和(自身を含む): 72667368

約数和(自身を除く): 43851688

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 5297, 5440, 10594, 21188, 26485, 42376, 52970, 84752, 90049, 105940, 169504, 180098, 211880, 339008, 360196, 423760, 450245, 720392, 847520, 900490, 1440784, 1695040, 1800980, 2881568, 3601960, 5763136, 7203920, 14407840, 28815680]

約数ペア:

[(1, 28815680), (2, 14407840), (4, 7203920), (5, 5763136), (8, 3601960), (10, 2881568), (16, 1800980), (17, 1695040), (20, 1440784), (32, 900490), (34, 847520), (40, 720392), (64, 450245), (68, 423760), (80, 360196), (85, 339008), (136, 211880), (160, 180098), (170, 169504), (272, 105940), (320, 90049), (340, 84752), (544, 52970), (680, 42376), (1088, 26485), (1360, 21188), (2720, 10594), (5297, 5440)]