20701030

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{509}}^1$

素因数の和:613

約数の個数: 48

約数和(自身を含む): 43953840

約数和(自身を除く): 23252810

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 83, 98, 166, 245, 415, 490, 509, 581, 830, 1018, 1162, 2545, 2905, 3563, 4067, 5090, 5810, 7126, 8134, 17815, 20335, 24941, 35630, 40670, 42247, 49882, 84494, 124705, 211235, 249410, 295729, 422470, 591458, 1478645, 2070103, 2957290, 4140206, 10350515, 20701030]

約数ペア:

[(1, 20701030), (2, 10350515), (5, 4140206), (7, 2957290), (10, 2070103), (14, 1478645), (35, 591458), (49, 422470), (70, 295729), (83, 249410), (98, 211235), (166, 124705), (245, 84494), (415, 49882), (490, 42247), (509, 40670), (581, 35630), (830, 24941), (1018, 20335), (1162, 17815), (2545, 8134), (2905, 7126), (3563, 5810), (4067, 5090)]