11222900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 26795160

約数和(自身を除く): 15572260

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 89, 97, 100, 130, 178, 194, 260, 325, 356, 388, 445, 485, 650, 890, 970, 1157, 1261, 1300, 1780, 1940, 2225, 2314, 2425, 2522, 4450, 4628, 4850, 5044, 5785, 6305, 8633, 8900, 9700, 11570, 12610, 17266, 23140, 25220, 28925, 31525, 34532, 43165, 57850, 63050, 86330, 112229, 115700, 126100, 172660, 215825, 224458, 431650, 448916, 561145, 863300, 1122290, 2244580, 2805725, 5611450, 11222900]

約数ペア:

[(1, 11222900), (2, 5611450), (4, 2805725), (5, 2244580), (10, 1122290), (13, 863300), (20, 561145), (25, 448916), (26, 431650), (50, 224458), (52, 215825), (65, 172660), (89, 126100), (97, 115700), (100, 112229), (130, 86330), (178, 63050), (194, 57850), (260, 43165), (325, 34532), (356, 31525), (388, 28925), (445, 25220), (485, 23140), (650, 17266), (890, 12610), (970, 11570), (1157, 9700), (1261, 8900), (1300, 8633), (1780, 6305), (1940, 5785), (2225, 5044), (2314, 4850), (2425, 4628), (2522, 4450)]