128961808

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{229}}^1\times {\mathrm{577}}^1$

素因数の和:875

約数の個数: 40

約数和(自身を含む): 255510680

約数和(自身を除く): 126548872

約数列:

[1, 2, 4, 8, 16, 61, 122, 229, 244, 458, 488, 577, 916, 976, 1154, 1832, 2308, 3664, 4616, 9232, 13969, 27938, 35197, 55876, 70394, 111752, 132133, 140788, 223504, 264266, 281576, 528532, 563152, 1057064, 2114128, 8060113, 16120226, 32240452, 64480904, 128961808]

約数ペア:

[(1, 128961808), (2, 64480904), (4, 32240452), (8, 16120226), (16, 8060113), (61, 2114128), (122, 1057064), (229, 563152), (244, 528532), (458, 281576), (488, 264266), (577, 223504), (916, 140788), (976, 132133), (1154, 111752), (1832, 70394), (2308, 55876), (3664, 35197), (4616, 27938), (9232, 13969)]