20688570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{32839}}^1$

素因数の和:32859

約数の個数: 48

約数和(自身を含む): 61476480

約数和(自身を除く): 40787910

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 32839, 65678, 98517, 164195, 197034, 229873, 295551, 328390, 459746, 492585, 591102, 689619, 985170, 1149365, 1379238, 1477755, 2068857, 2298730, 2955510, 3448095, 4137714, 6896190, 10344285, 20688570]

約数ペア:

[(1, 20688570), (2, 10344285), (3, 6896190), (5, 4137714), (6, 3448095), (7, 2955510), (9, 2298730), (10, 2068857), (14, 1477755), (15, 1379238), (18, 1149365), (21, 985170), (30, 689619), (35, 591102), (42, 492585), (45, 459746), (63, 328390), (70, 295551), (90, 229873), (105, 197034), (126, 164195), (210, 98517), (315, 65678), (630, 32839)]