128912050

素因数分解:

$2^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:651

約数の個数: 48

約数和(自身を含む): 247082400

約数和(自身を除く): 118170350

約数列:

[1, 2, 5, 10, 25, 50, 59, 89, 118, 178, 295, 445, 491, 590, 890, 982, 1475, 2225, 2455, 2950, 4450, 4910, 5251, 10502, 12275, 24550, 26255, 28969, 43699, 52510, 57938, 87398, 131275, 144845, 218495, 262550, 289690, 436990, 724225, 1092475, 1448450, 2184950, 2578241, 5156482, 12891205, 25782410, 64456025, 128912050]

約数ペア:

[(1, 128912050), (2, 64456025), (5, 25782410), (10, 12891205), (25, 5156482), (50, 2578241), (59, 2184950), (89, 1448450), (118, 1092475), (178, 724225), (295, 436990), (445, 289690), (491, 262550), (590, 218495), (890, 144845), (982, 131275), (1475, 87398), (2225, 57938), (2455, 52510), (2950, 43699), (4450, 28969), (4910, 26255), (5251, 24550), (10502, 12275)]