20217470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1709}}^1$

素因数の和:1749

約数の個数: 48

約数和(自身を含む): 45061920

約数和(自身を除く): 24844450

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 169, 182, 338, 455, 845, 910, 1183, 1690, 1709, 2366, 3418, 5915, 8545, 11830, 11963, 17090, 22217, 23926, 44434, 59815, 111085, 119630, 155519, 222170, 288821, 311038, 577642, 777595, 1444105, 1555190, 2021747, 2888210, 4043494, 10108735, 20217470]

約数ペア:

[(1, 20217470), (2, 10108735), (5, 4043494), (7, 2888210), (10, 2021747), (13, 1555190), (14, 1444105), (26, 777595), (35, 577642), (65, 311038), (70, 288821), (91, 222170), (130, 155519), (169, 119630), (182, 111085), (338, 59815), (455, 44434), (845, 23926), (910, 22217), (1183, 17090), (1690, 11963), (1709, 11830), (2366, 8545), (3418, 5915)]