51263120

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15629}}^1$

素因数の和:15683

約数の個数: 40

約数和(自身を含む): 122101560

約数和(自身を除く): 70838440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 15629, 31258, 62516, 78145, 125032, 156290, 250064, 312580, 625160, 640789, 1250320, 1281578, 2563156, 3203945, 5126312, 6407890, 10252624, 12815780, 25631560, 51263120]

約数ペア:

[(1, 51263120), (2, 25631560), (4, 12815780), (5, 10252624), (8, 6407890), (10, 5126312), (16, 3203945), (20, 2563156), (40, 1281578), (41, 1250320), (80, 640789), (82, 625160), (164, 312580), (205, 250064), (328, 156290), (410, 125032), (656, 78145), (820, 62516), (1640, 31258), (3280, 15629)]