20219900

素因数分解:

$2^2\times 5^2\times {\mathrm{241}}^1\times {\mathrm{839}}^1$

素因数の和:1094

約数の個数: 36

約数和(自身を含む): 44111760

約数和(自身を除く): 23891860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 241, 482, 839, 964, 1205, 1678, 2410, 3356, 4195, 4820, 6025, 8390, 12050, 16780, 20975, 24100, 41950, 83900, 202199, 404398, 808796, 1010995, 2021990, 4043980, 5054975, 10109950, 20219900]

約数ペア:

[(1, 20219900), (2, 10109950), (4, 5054975), (5, 4043980), (10, 2021990), (20, 1010995), (25, 808796), (50, 404398), (100, 202199), (241, 83900), (482, 41950), (839, 24100), (964, 20975), (1205, 16780), (1678, 12050), (2410, 8390), (3356, 6025), (4195, 4820)]