20488788

素因数分解:

$2^2\times 3^5\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:323

約数の個数: 72

約数和(自身を含む): 54486432

約数和(自身を除く): 33997644

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 107, 108, 162, 197, 214, 243, 321, 324, 394, 428, 486, 591, 642, 788, 963, 972, 1182, 1284, 1773, 1926, 2364, 2889, 3546, 3852, 5319, 5778, 7092, 8667, 10638, 11556, 15957, 17334, 21079, 21276, 26001, 31914, 34668, 42158, 47871, 52002, 63237, 63828, 84316, 95742, 104004, 126474, 189711, 191484, 252948, 379422, 569133, 758844, 1138266, 1707399, 2276532, 3414798, 5122197, 6829596, 10244394, 20488788]

約数ペア:

[(1, 20488788), (2, 10244394), (3, 6829596), (4, 5122197), (6, 3414798), (9, 2276532), (12, 1707399), (18, 1138266), (27, 758844), (36, 569133), (54, 379422), (81, 252948), (107, 191484), (108, 189711), (162, 126474), (197, 104004), (214, 95742), (243, 84316), (321, 63828), (324, 63237), (394, 52002), (428, 47871), (486, 42158), (591, 34668), (642, 31914), (788, 26001), (963, 21276), (972, 21079), (1182, 17334), (1284, 15957), (1773, 11556), (1926, 10638), (2364, 8667), (2889, 7092), (3546, 5778), (3852, 5319)]