201084820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1\times {\mathrm{653}}^1$

素因数の和:924

約数の個数: 48

約数和(自身を含む): 430148880

約数和(自身を除く): 229064060

約数列:

[1, 2, 4, 5, 10, 20, 89, 173, 178, 346, 356, 445, 653, 692, 865, 890, 1306, 1730, 1780, 2612, 3265, 3460, 6530, 13060, 15397, 30794, 58117, 61588, 76985, 112969, 116234, 153970, 225938, 232468, 290585, 307940, 451876, 564845, 581170, 1129690, 1162340, 2259380, 10054241, 20108482, 40216964, 50271205, 100542410, 201084820]

約数ペア:

[(1, 201084820), (2, 100542410), (4, 50271205), (5, 40216964), (10, 20108482), (20, 10054241), (89, 2259380), (173, 1162340), (178, 1129690), (346, 581170), (356, 564845), (445, 451876), (653, 307940), (692, 290585), (865, 232468), (890, 225938), (1306, 153970), (1730, 116234), (1780, 112969), (2612, 76985), (3265, 61588), (3460, 58117), (6530, 30794), (13060, 15397)]