51619840

素因数分解:

$2^{11}\times 5^1\times {\mathrm{71}}^2$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 125626410

約数和(自身を除く): 74006570

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 512, 568, 640, 710, 1024, 1136, 1280, 1420, 2048, 2272, 2560, 2840, 4544, 5041, 5120, 5680, 9088, 10082, 10240, 11360, 18176, 20164, 22720, 25205, 36352, 40328, 45440, 50410, 72704, 80656, 90880, 100820, 145408, 161312, 181760, 201640, 322624, 363520, 403280, 645248, 727040, 806560, 1290496, 1613120, 2580992, 3226240, 5161984, 6452480, 10323968, 12904960, 25809920, 51619840]

約数ペア:

[(1, 51619840), (2, 25809920), (4, 12904960), (5, 10323968), (8, 6452480), (10, 5161984), (16, 3226240), (20, 2580992), (32, 1613120), (40, 1290496), (64, 806560), (71, 727040), (80, 645248), (128, 403280), (142, 363520), (160, 322624), (256, 201640), (284, 181760), (320, 161312), (355, 145408), (512, 100820), (568, 90880), (640, 80656), (710, 72704), (1024, 50410), (1136, 45440), (1280, 40328), (1420, 36352), (2048, 25205), (2272, 22720), (2560, 20164), (2840, 18176), (4544, 11360), (5041, 10240), (5120, 10082), (5680, 9088)]