21880451560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49728299}}^1$

素因数の和:49728321

約数の個数: 32

約数和(自身を含む): 53706564000

約数和(自身を除く): 31826112440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49728299, 99456598, 198913196, 248641495, 397826392, 497282990, 547011289, 994565980, 1094022578, 1989131960, 2188045156, 2735056445, 4376090312, 5470112890, 10940225780, 21880451560]

約数ペア:

[(1, 21880451560), (2, 10940225780), (4, 5470112890), (5, 4376090312), (8, 2735056445), (10, 2188045156), (11, 1989131960), (20, 1094022578), (22, 994565980), (40, 547011289), (44, 497282990), (55, 397826392), (88, 248641495), (110, 198913196), (220, 99456598), (440, 49728299)]