20951340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12041}}^1$

素因数の和:12082

約数の個数: 48

約数和(自身を含む): 60691680

約数和(自身を除く): 39740340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 12041, 24082, 36123, 48164, 60205, 72246, 120410, 144492, 180615, 240820, 349189, 361230, 698378, 722460, 1047567, 1396756, 1745945, 2095134, 3491890, 4190268, 5237835, 6983780, 10475670, 20951340]

約数ペア:

[(1, 20951340), (2, 10475670), (3, 6983780), (4, 5237835), (5, 4190268), (6, 3491890), (10, 2095134), (12, 1745945), (15, 1396756), (20, 1047567), (29, 722460), (30, 698378), (58, 361230), (60, 349189), (87, 240820), (116, 180615), (145, 144492), (174, 120410), (290, 72246), (348, 60205), (435, 48164), (580, 36123), (870, 24082), (1740, 12041)]