20873340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115963}}^1$

素因数の和:115978

約数の個数: 36

約数和(自身を含む): 63316344

約数和(自身を除く): 42443004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115963, 231926, 347889, 463852, 579815, 695778, 1043667, 1159630, 1391556, 1739445, 2087334, 2319260, 3478890, 4174668, 5218335, 6957780, 10436670, 20873340]

約数ペア:

[(1, 20873340), (2, 10436670), (3, 6957780), (4, 5218335), (5, 4174668), (6, 3478890), (9, 2319260), (10, 2087334), (12, 1739445), (15, 1391556), (18, 1159630), (20, 1043667), (30, 695778), (36, 579815), (45, 463852), (60, 347889), (90, 231926), (180, 115963)]