21977940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{743}}^1$

素因数の和:801

約数の個数: 96

約数和(自身を含む): 67495680

約数和(自身を除く): 45517740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 29, 30, 34, 51, 58, 60, 68, 85, 87, 102, 116, 145, 170, 174, 204, 255, 290, 340, 348, 435, 493, 510, 580, 743, 870, 986, 1020, 1479, 1486, 1740, 1972, 2229, 2465, 2958, 2972, 3715, 4458, 4930, 5916, 7395, 7430, 8916, 9860, 11145, 12631, 14790, 14860, 21547, 22290, 25262, 29580, 37893, 43094, 44580, 50524, 63155, 64641, 75786, 86188, 107735, 126310, 129282, 151572, 189465, 215470, 252620, 258564, 323205, 366299, 378930, 430940, 646410, 732598, 757860, 1098897, 1292820, 1465196, 1831495, 2197794, 3662990, 4395588, 5494485, 7325980, 10988970, 21977940]

約数ペア:

[(1, 21977940), (2, 10988970), (3, 7325980), (4, 5494485), (5, 4395588), (6, 3662990), (10, 2197794), (12, 1831495), (15, 1465196), (17, 1292820), (20, 1098897), (29, 757860), (30, 732598), (34, 646410), (51, 430940), (58, 378930), (60, 366299), (68, 323205), (85, 258564), (87, 252620), (102, 215470), (116, 189465), (145, 151572), (170, 129282), (174, 126310), (204, 107735), (255, 86188), (290, 75786), (340, 64641), (348, 63155), (435, 50524), (493, 44580), (510, 43094), (580, 37893), (743, 29580), (870, 25262), (986, 22290), (1020, 21547), (1479, 14860), (1486, 14790), (1740, 12631), (1972, 11145), (2229, 9860), (2465, 8916), (2958, 7430), (2972, 7395), (3715, 5916), (4458, 4930)]