42889040

素因数分解:

$2^4\times 5^1\times {\mathrm{653}}^1\times {\mathrm{821}}^1$

素因数の和:1487

約数の個数: 40

約数和(自身を含む): 99991368

約数和(自身を除く): 57102328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 653, 821, 1306, 1642, 2612, 3265, 3284, 4105, 5224, 6530, 6568, 8210, 10448, 13060, 13136, 16420, 26120, 32840, 52240, 65680, 536113, 1072226, 2144452, 2680565, 4288904, 5361130, 8577808, 10722260, 21444520, 42889040]

約数ペア:

[(1, 42889040), (2, 21444520), (4, 10722260), (5, 8577808), (8, 5361130), (10, 4288904), (16, 2680565), (20, 2144452), (40, 1072226), (80, 536113), (653, 65680), (821, 52240), (1306, 32840), (1642, 26120), (2612, 16420), (3265, 13136), (3284, 13060), (4105, 10448), (5224, 8210), (6530, 6568)]